Could I get a Vacation for Stress Relief?

[OHmyGORGONS]

I have always been a little paranoid, but now, whenever I need to do anything, like take a test in school, or go to a swimming lesson, I get a huge migraine and I start stressing out a lot. I'm very young, and whenever I go to the chiropractor he tells me that my muscles are being knotted and damaged because of how stressed out I get. Is it possible that a doctor could say that I needed to take a vacation from school and stress in order to feel better? I know it sounds crazy but I'm really curious because I don't know what to do at this point. As much as I try to relax, I just start thinking about upcoming things and my head hurts again.