Holy crap. I've finished 2 exams out of 3, and so far no anxiety!
No racing mind, no trouble breathing, no paranoia, no nausea, and no compelling urge to avoid people at all. Just the usual nervousness for what my grades are going to be, but basically everyone in my class feels that way. So I guess I can safely conclude that's nothing out of the ordinary.
Not sure how I'm doing this, but I can get used to this!