Bottom line: give yourself the gift of TIME. There is no silver bullet. Medications may or may not be effective and may or may not have side effects.
I see this more and more: I ONLY have THREE DAYS blah blah blah...
Look: you tried it this same way and failed, fairly miserably in how it made you feel/how your body reacted. I wish you the best, hope that taking the Diamox works. I would also agree that spending one night at 10K may not be sufficient.
You may also drop your pace: maybe use that pace card that someone put up here? Often, those who claim to be "in really good shape" end up pushing too hard.
-L
