Amundsen lay in a tent in a blizzard for the same time, in the same place. He also experienced the altitude, although not to the degree of vomiting, as the author did:
We quickly found out that [this] was not a hospitable locality. During the night the temperature sank, and violent gusts of wind swept over the plain; they shook and tore at the tent… The effect of the sudden and great change in altitude made itself felt at once; when I wanted to turn in round in my bag, I had to do it a bit at a time, so as not to get out of breath. That my comrades were affected in the same way, I knew without asking them; my ears told me enough.