I usually get really anxious before exams. I can't sleep the night before, I can't eat at all all day, cry uncontrollably because of stress, sometimes feel the need to vomit, I start trembling, also my pulse is getting bigger so I can "feel" and hear my heart beats. It's like I know that the exam is not a big deal and it's fine it I fail, nothing bad will happen, but my body doesn't know that.
So sometimes I start feeling lightheaded, just like when you pass out. How do you manage to not pass out? Do you go and sit in your bed, force yourself to drink water etc?