It kind of sounds like the noise a goat would make if you punched it in the face.
In any high stress situation you are going to default to your level of training...period.
Altitude sickness is gonna put the screws on you.
It's probably one of the worst places I've been.
If I gave this guy more time, there would be a swimming pool and rattan furniture.
#1 priority is water, water and more water.