The best advice is to take it easy and
drink lots of water. Your body is suffering because you don’t have enough
oxygen so avoiding any extraneous activity is a good idea.
The oh-so-popular jumping pictures might
seem like a good idea but at 3-5,000 meters you’re going to want to put a bit
more effort into getting the picture perfect on the first jump. Drinking water
will also help since you loose more water due to heavy breathing in the thin
air and the dry high altitude climate.
