I have unipolar depression, AKA major depressive disorder, and OCD. Prior to my admission of my GID to my therapist, he thought I might have a personality disorder, due to the fact that I was so at odds with myself. Once I told him I was TS, it explained everything. He said that was probably at the root of my other problems, and I have found this to be the case, actually. I was initially on 3 medications for my depression and OCD, and am now down to 2, and happier than ever, because I am full-time now. The further I go in my transition, the happier I seem to be with myself and with everything else.
My point? We all have problems, as Cindi said. Many TSs have various mental "illnesses", but many of those are a result of the havoc transsexualism inevitably wreaks on our lives. It is not easy being TS. In fact, it's probably one of the toughest things anyone can deal with. But we deal with it, and we might have our scars to show off in the end, but we also become more than we might have thought. Shrinks understand that; at least the ones who specialize in gender issues do.
Rafe