Hhhm.... you are going to get a lot of different answers, but I think it is hard for us to tell you what you need or should do. I personally don't see how depression could cause all of those symptoms in and of itself, but then again, I am not a doctor. I do know that depression causes different symptoms in different people. I can say that I still get dizzy from ukemi sometimes, especially if I do too many forward rolls at once. If in doubt, go see someone. At least it will put your mind at ease and will get you on the track to recovery. Best of luck to you. It seems like you are missing the mat.