Do pilots ever feel nausea?

So I am determine to be a pilot, I love flying, cannot wait to get my license. Though last time i flew i felt a little motion sickness. Do any of you (pilots) ever feel some nausea in severe turbulence. I think the issue with me was that it was extremely hot, i was in the very back of the plane couldnt really see out of any window and my air vent was not working properly. Just wondering?