Dear Doctor,Can one suffer from multiple personality disorders simultaneously? In the past couple months, I have come to think that I have ADHD, anti-social personality disorder, narcissism, depression, and possibly a bipolar personality disorder. Trust me, I am not one of those hypochondriac people who're always trying to find what's wrong with them. On the contrary, until 2 or 3 years ago, I thought there was absolutely or almost nothing wrong with me. You will probably advise that I seek psychiatric help (and I couldn't agree more), but the problem is that two or three doctors I've seen so far believe that, apart from depression, I am essentially all right (just because I don't hear voices :)Thank you,Helen