If you can't breathe lying down on your back at altitude, that means it's time to get down to lower elevation that day, not the next. The same thing happens in cardiac failure, though with hape it goes away as soon as you lose elevation. So it's something to remember if you do a trip where you're spending extended time at elevation. It's not something that'll happen if you go spend the night at 6000-8000 feet and go hiking at 14000 in the day and then drive back to the hotel at 6000-8000 feet. You can get altitude sickness still doing dayhikes (it's called acute mountain sickness, or ams), but it's not dangerous like hape or hace (cerebral edema).
__________________ Cookie  ;;; RIP Minnie |