He has no concept what it's like to try to function with a mood disorder.

I took a leave of absence in my Junior yr due to breakdown. The semester before that I had tremendous difficulty taking tests and being easily distracted. There were always at least 125 people arm-to-arm in tiny desks taking tests with coughing, sniffling, page-turning, books dropping, etc. going on during tests and I would lose my train of thought extremely easily. Every sound bothered me and sounds seemed like they were amplified. I got two D's and two F's that semester.

Have your Dr. give the diagnosis to your Dean and explain to the Dean the symptoms you have on a daily basis.