I was a science major and when I took math classes I did my homework, and after a few hours of doing equations my head would start spinning and my brain would start to shut down. I'd have to walk away from it for awhile, and get something to eat or just relax, it was very trying at times. Hang in there, I had to laugh when you said it was MATH as I've been there! I had to take physics too, that was not easy!