(Most of this text is from March 2018)
About 14 months before Paula and I
        started the same route.
        We had been up tougher peaks (like Bridge Mountain), but
        when we came to the dryfall on Muddy (after hiking 5 miles)
        she couldn’t face it, so we just had a pleasant hike in the
        desert that day. So in the back of my mind, I figured some
        day we would come back, with more equipment, and more
        training.
        
        I enjoy helping people overcome fears and gain skills.
        Perhaps there is some deep psychological reason. I grew up
        without a lot of positive reinforcement, lots of predictions
        of doom and failure, and I hope I can get some good karma
        by helping people succeed. And I’m partly crippled, and like
        to push myself. I had a freakish stroke in 2002, and am
        partly paralyzed on the right side of my body. I’ve done
        remarkably well. 
        
        The stroke was in the
 cerebellum
        at the base of the brain;
        this is a part of your brain that works unconsciously to
        coordinate fine movements of your muscles, to supply
        proprioception. About 90% of the cerebellum's signals just
        tell muscles “STOP!” I’ve trained my cerebrum (upper,
        conscious brain) to be more alert and stead for the cerebellum.
        This substitution works well as long as I’m not too tired. If
        someone distracts me with something that requires a lot of
        cerebral (upper brain) processing (such as parsing indistinct
        language), especially when I’m engaged in a task that would
        involve cerebellar use in a normal individual, I can stumble.
        Normally, when blindsight and my peripheral vision detect a
        dangerous situation on my right side, the amygdala reacts,
        and my cerebrum intercepts to decide an action. If I’m really
        tired or distracted, a message to “STOP” is sent to my
        cerebellum without that cerebral interception, and nothing
        happens, because that right side cerebellum is partly gone.
        Somehow this all makes me sympathetic to people with
        mental blocks. 
        
        Paula is very athletic, and quite clever; she picks up skills
        quickly, and has a well-trained cerebellum, as evidenced by
        her ease with gymnastics. But in 2018, she was open about
        thing: she had anxiety attacks, particularly if she felt “remote.”
        It took me till February 2018 to understand truly what that meant.
        You can never know what is going on inside another person’s
        head, and it is arrogant and presumptuous to think another
        person can do what you do to deal with fears.
(
2019 Update: Paula has tremondously improved, and has
mostly lost her fear of "remote." She has since climbed
Muddy solo, as part of a 19 mile- 2-peak day. The panic
attacks are mainly gone -- check out her "Squirrel" solo:
 
https://www.youtube.com/watch?v=7O_7pFVRAPg&feature=youtu.be)
        
        We had advanced her skill on rock a lot in 2017-18; I got
        her to rappel much better, to set up rappels on a munter herself
        (she really taught herself once shown), and I got her to trust belays.
        As a training culmination, we went to a dryfall near Red Rock,
        in limestone like the dreaded Muddy dryfall, but technically
        harder. We rapped down that dryfall, and I got her to climb the
        4th-class rock on belay, which she did with little effort. She sent
        me a photo of her rapping off her porch. 
There was one bad omen; four days before our trip, I had
a routine cystoscopy at the urologist's office. Before the visit,
I called the office to make sure they would give me an antibiotic
OTHER than a fluoroquinalone (like Cipro), as I have a bad
reaction to Cipro, with connective tissue damage. Cipro was
actually on my chart as forbidden. Well, the nurse didn't read
the chart and gave me Cipro. I was horrified, and even thought
of cancelling the trip; but figured I'd just be extra careful not to
stress any connective tissue (or for that matter, anything with a
collagen layer, which Cipro destroys in susceptible people).
        
        So Feb 4, 2018 arrived, and we started off for Muddy with
        lots of water. The day that was supposed to be about 10F
        above seasonal average; maybe 74F by the end of the day
        down low, never above low 60s at 5000’. We had lots of pleasant
        conversation, and got up to the infamous dryfall. I climbed up,
        found an anchor, and put down two lines; one with loops
        (overhands-on-bights) tied every 3’, and one as a belay with
        a figure 8-on-a bight, which she could just clip into her waist. 
        
        And for about 20 minutes, Paula was caught in a panic attack.
        I climbed down, and talked to her. “I have to get through this
        myself,” she said, “I have coping mechanisms.” And it dawned
        on me that unlike our harder practice waterfall, this place was
        really remote. I didn’t try to reason, I just made gentle commands.
        “First, get into your climbing harness,” and she did, mechanically,
        but had the presence of mind to check the buckle. “OK, let’s go
        over to the belay rope, and clip on the figure 8.” She did, and
        made sure the screwgate was completely locked. I climbed back
        up, anchored myself, and prepared for a hip belay over a lip of
        rock. I pulled and hit some resistance. “Is that you?” “No not yet.”
        Then she started on the wall… and in 30 seconds the hard part
        was over. While she rested I checked the anchor for a rap down.
        
        And it all went pretty smoothly for the rest of the trip to the
        summit. At least 2x, I got her to climb harder stuff, easily;
        perhaps it helped that I had no alarm in my voice, and I still
        had 160’ of rope. Gracefully she found her way over my
        navigation mistakes. We hit the top joyfully, spent some time
        basking, descended, and hit the dryfall. I tied the sling for the
        anchor, put on a quicklink, and set up a double-rope rap. She
        tied her own Munter as I watched, she checked the water knot
        on the anchor several times. I climbed down to give a fireman’s
        belay. With just a touch of nervousness, she showed great form
        coming down en rappel. I climbed back up and took down the
        rappel sling, and suddenly noticed that I was tired—not
        physically, but mentally.
        
        And the hard part was over; we just had less than a mile of
        sometimes precarious boulder-hopping to reach the safety of
        the wash, then 4 easy miles out. She began talking about what
        it was like to have a panic attack. She hides her attacks, so other
        people don’t have to accommodate her. Sometimes she feels
        like just dropping her pack and fleeing, even though she knows
        how irrational that is. She can’t stop that inner voice; just like
        claustrophobics in an MRI tube can’t just tell themselves to
        relax. Hmmm I thought, we are still a bit remote. But I can
        often read the starting signs of the panic on her face. So we
        started back to the wash, me leading. I knew my brain was too
        tired to deal with the slippery rocks in the wash, so I chose an
        easier route on the east bank of the wash.  After a while Paula
        started disappearing in parallel washes; I couldn’t see her, but
        I would often shout and she would answer. I didn’t think this
        was a situation for “I just want to flee.” In fact Paula told me
        later that she was just feeling happy and confident and picking
        her own way. I got very close to the final wash, and shouted.
        Nothing. Hold that thought; it’s time for a flashback.
        
        ---flashback------------
        It was December 23, 2007, more than 10 years before.
        Other friends and I were doing a "hike" up Tunnel Vision
        Peak, with some class 4. The rock was still water-saturated
        from recent rainfalls, even though that day was beautiful with
        blue skies. At one point, there was a bottleneck ahead, so I
        climbed up onto a slab that was attached to the rock below it.
        
        As I started to push off the slab, it broke free, probably because
        the moisture had weakened the rock. Immediately it occurred
        to me that there were people below me, so I jumped back off
        the slab, and used my right arm to slow it down. I felt like my 
        arm had been pulled out of the socket-- and in a sense, it
        probably was, but the angle was such that I didn't dislocate the
        shoulder. As it was, my friend Jacquie, who was right below,
        had already reached up around a bush, and rock had so crushed
        the bush that she couldn't remove her hand. I was able to
        lift the end of the rock enough for her to extricate her hand.
        People thought I had done something heroic, but in my mind,
        I had created the problem, unintentionally or not. If Jacquie
        had been injured (or even killed), my life would have taken a
        very different, sad path. The injury was a very small price to pay.
        At the time I didn't put all the pieces together; no time for deep
        analysis when the spidey sense tingles you have a second to act.
        I'm very glad I chose the right action. I continued with the
        climb, even though my arm hurt a lot. For the next year and
        half, just when I thought my arm was OK, I'd reinjure.
        ---end flashback------
        
        So, back to 2018... I had just shouted to contact Paula. I started
        to get that spidey sense; was that foreboding due the shallow
        wash I was about to step into, or was it due to a problem with
        Paula? The tingling, the "foreboding" got worse as my brain sent
        my right cerebellum a message to stop; but there was nobody
        home, and my upper brain was too tired to notice. I fell face-first
        into the wash. Instincts took over, I tucked and rolled, protecting
        my head. But when I rolled onto my back, my pack—stuffed
        full of rope and emergency gear—hit first and my head whip-
        lashed, even cradled in my hands. I sat up;  no head injuries,
        but boy the muscles in my neck were sore. Paula came over the
        rise, shocked. We took a few minutes for a snack, but I just shook
        it off as another whiplash, and walked out 4 miles, pretty much
        pain-free. Paula was upset, sure she had “broken me” by using
        up too much of my brain.
(One of the worst things about the tired-cerebellum "foreboding":
it actually feels somewhat euphoric, like the feeling one gets just
before slipping unconscious, when one has general anesthesia.)
        
        My neck was sore for another 2 weeks, and I had some vertigo.
        My left ear felt stuffy, with minor pain. But I did lots of balance
        tests, vestibular training, etc. I got a cervical X-ray: no damage.
        
In 2002 I’d had that stroke, probably caused by a vertebral
        artery dissection (after a neck injury), so my first priority was to
        make sure I didn’t have another. To make things worse, my
        urologist’s idiot nurse had given me Cipro, which was on my chart
        as forbidden, just 4 days before; I’ve had lots of connective tissue
        damage, probably related to Cipro. Paula and I even went on a hard
        hike 10 days after the Muddy trip; intentionally I picked a place I’d
        gone just before the older stroke. Everything seemed almost healed.
        And now a new baseline. 
        
        On February 20, just as the last remnants of soreness went away,
        I had a sudden onset of pulsatile tinnitus, in my left ear, when I lay
        down. I actually first recognized the sound on February 21.
The sound is a “whoosh whoosh” synchronized with my
        heartbeat, and is extremely annoying. My sleep was pretty bad until
        I discovered a way to drown out the whooshes with brown noise;
        I sampled a lot of mp3 players and earbuds before I hit a solution.
        Pulsatile tinnitus is usually caused by a vascular irregularity. I
        guessed I had opened up a dAVF between my occipital artery and
        a venous sinus in my head; the whooshing was caused by the fast
        artery blood dumping into the slow-moving vein, which happened
        to pass close to my middle ear. I went to UCSF, and they found
        the dAVF was actually at the base of my skull, causing the same
        effect. My options now are a little scary, but I march on.
        
        Count every day as a blessing, because you never know.
(
2/21/19 Update: The whiplash ripped several small arteries, 
stretched as they went from extra-cranial to intra-cranial. Nature
tries to minimize pressure gradients, so ersatz vessels started
forming at the rips, and eventually reached the signoid and
marginal sinuses, and the flow started refluxing into the cortical
veins. This situation left me at high risk for a fatal hemorrhage.
I had surgery August 21, 2018; that operation largely stopped the
PT, but has left me with somewhat scary after-effects -- visual
auras that leave me partly blind, make me aphasic, and
occasionally compromised balance.) 
(2021 update: It has been 3 years since
the accident, and I still limit my driving to less than 150 miles in a
day; because the temporary blindness is correlated with holding my
head up in driving position, and losing sight when you are driving is
not a comfortable feeling. Driving at night is virtually out of the
question.
Perhaps the scariest issue is that I get transient aphasia,
when I don't really know who I am. I may now be heading to early
dementia, as new WMH appeared in my brain, and my thinking
became foggier.)
Whiplash injuries are actually quite common in outdoor
activities, especially among boulderers and skiers. The biggest
culprit here was the over-stuffed pack. Less than 2 years
before, I watched in horror as a guy with 300' rope in his pack
fell back and had a similar accident.
=======The stuffed pack==================
I normally wouldn't take much on a trip like this; for the modest
class 3 areas, I'd probably take 60' of 15mm webbing. Because
she was going to rap the dryfall, I ended up with 181' of
cordage, an extra harness, biners, quicklinks, and so on. 
At that time, she had a fear of remoteness, so I promised
we would take enough to survive a night in the open.
So I had 2 headlamps, 2 small closed-cell pads, a full
3-layer blizzard bag, an extra aluminized tyvek zippered
mummy case, an extra aluminized poncho, and more
emergency clothes  (down jacket, fleece) than I felt I
would need, considering nighttime temperatures about
50 F. Besides, I had my SPOT satellite beacon. Two of
the items, the blizzard-bag and pad, were bulky.
The night before Paula e-mailed that "I will bring a bigger pack
to carry extra water and ropes." But when we parked to
prepare for the hike, she had a small trail-runner's pack.
When I asked to divy emergency gear, she looked forlorn 
and pointed out her pack was already stuffed to the point
where she would have to carry water in her hands. That
left me to carry most of the emergency stuff.  I thought little
of this
discomfort; I didn't want to make the day any harder
on her, and the
extra weight was little burden for me.  But my
30L pack became like a turgid barrel. To make matters worse,
I lashed extra gear on the back of the pack. This has been
the elephant in the room for over a year now.  
(2021 update:  I found out later that she had 
a 30L Osprey pack but found it very uncomfortable.)
In an earlier version of this page, I claimed I had a 45L pack
that I simply forgot to bring.  That was BS; I could see 
Paula was distressed by anything that implied she was complicit
in the accident, so I said that to take the blame. The luck of the
draw; this day wore through all my carefully crafted defenses.
 
I'm a grownup, and I made the ultimate decisions "to be
a hero".  When Paula said she couldn't carry the Blizzard Bag
and foam pad meant for her, I should have said, "OK, I won't
carry them either."  When the nurse insisted she had the Doctor's
permission to give me Cipro (she lied about that), I should
have pulled my feet out of the straps, gotten off the table, dressed,
and gone home. In a lifetime of accommodating others, I
don't always speak my mind for fear of alienating people, and I
always think I'll be strong enough for other people.