Thanks you guys for the replies!
I have not been in school since august and trying my best to get some good rest without worrying about school. I was under the opinion the 50mg wasn't mutch at all. My neurologist said that 90mg was the upper limit.
Somedays I feel incredibly tired, I guess the amitriptylin might not help with that. I can't say if it helps at all to be honest. I'v been trying my best to find a system with these headaches, but they seem somewhat random. Some days I just have a constant headache, other days I am mostly fine. That is, if I am resting. I can not do any school work without pain or anything which demands my full attention and cognitive ability. Actually, writing this kinda makes my head hurt.

How can I know if my neck is the problem? Would I be having problems with cognitive stimulation if it were in fact a spine/neck? I wake up every morning with a sore neck. I have been to a chiropractor, which didn't seem to help that much anyway. My neurologist was pretty sure the problem was my brain rather than my spine. How do I know?