I have been put in the mental hospital twice in the past, and was not fortunate enough to get a lupus diagnosis, until 5 years ago. I was told I only had fibro for over 12 years..I also, had hypomania.
Just before, my diagnosis of Lupus, I became psychotic. I was finally, put on Plaquenil, and that seemed to help, but since have become increasingly ill. loss of mental function, and physical decline. I tried other meds for Lupus, and finally, am on a fairly low dose of Pred, and starting dose of Cell Cept.
I do know my last M.R.I. prompted enough concern, for my Neuro, to call my Psychiatrist and send him, my last test result. I just had my Valporic acid raised..for some seisure activity, and to help with recent mood swings..
I would agree that you are under a lot of stress right now, with your recent breakup, so who really knows, how much that plays into your depression.
I think, it would be a good idea, to get followed by a Phychiatrist, as you mentioned..He/she may be able to help sort things out a bit better for you.