Hi, Wissenschaft. I would also look at how you are studying and whether you are enjoying it. Would it be possible to drop a class or slow things down a little so you don't have to concentrate so hard for so long? Your health is not worth any school program where you believe you have to do so much as you are now. Can you join with other students and study together, maybe dividing the work up like a "project" so you teach the others a part and they teach you parts, something like that? I would try studying in a library part of the time too, around other students and where you can look up from your work and notice others working and things going on, people wandering around, not just the inside of your own head and space.