It depends. I went in not knowing what the he11 was wrong with me. I only went because my suicidal thoughts got worse and I had anhedonia and didn't know what was going on. I only told the pdoc what was wrong with me at that time. I didn't tell him my full history because I couldn't remember most of it and I thought my hypomania was just me feeling extra good. He11, I never even heard of hypomania before. I only heard of mania and that you had to have a psychotic episode to even be considered bipolar. It wasn't until my wife came with me and started rattling off what I did in the past and how I've been depressed for most of 8 years that the pdoc dx me. He's like, "I can't properly diagnose you if you don't tell me eveything." So he probably can if he knows every little detail of your life.