A slow and relentless incline across the lunar desert. The air was becoming thinner and the task becoming harder. Although we had Kenya on one side of the shoulder and Tanzania on the other I was closing in psychologically on the goal of Kibo.
Typically, dizziness only occurs after intense movement or during motion sickness. But for some people, dizzy spells can come out of nowhere. This, combined with feeling off balance, is referred to as vertigo.