Whats wrong with me? am i depressed?

i, like many people, have been traumatized and have many issues. but the issue here is i don't know if im mentally ok. i get constant headaches. i never feel good . i have bad anxiety. i get upset over things that make sense to me but not to any one else apparently. but i don't drink unless im out with my friends and ill only have like 2. because im a light weight. i don't smoke unless there's peer pressure so i stay away from it.i don't smoke cigarettes at all and i don't hurt myself. i don't cut and im scared of hurting myself. but i believe i have some kind of depression. i also have diabetes. i do take care of it. but i don't know if it is effecting me even tho i take care of it. i am a work a holic and i cant sleep unless i am working full time go in to school full time and working out. i also cant sleep with out some one sleeping next to me. i cant seem to hold a stable relationship. friends or boyfriend. most of my friends are gone now. iv become a homebody and only know the ppl i live with. recently let go of a guy i cared about. and i broke up with him over something stupid. but for some reason it felt it was right.i looked up symptoms of depression but they all include suicidal thoughts, drinking, and smoking, danger seekers. i dont fit any of those