Ok. Well then, I think that's a good argument to discuss with your doctor. I'm not up to date about bipolar disorder and how someone can be depressed only but still bipolar. (Uni polar?) Anyway... try to deal with the depression, that's plenty imo! There is a listing of the most common cognitive distortions (thinking errors) posted at the top of the Psychotherapy Forum.... those can help bring you up from depression some.
TC!