I think the bipolar condition is very complex. It manifests itself so differently in every person affected by it that it gets downright confusing at times. What's even more frustrating is that people with bipolar tend to have other psych conditions as well, which can really confound the picture. As such -- as BirdDancer pointed out -- it is difficult to define "normal behavior."

I think it's okay if you're worried about labels and if you question things sometimes. I do think it is healthy to occasionally question any kind of diagnosis, because it shows that you're trying to understand yourself and you're making sure that your needs are met. But what is NOT healthy is to question your diagnosis constantly and not talk to a mental health or medical professional about it. A lot of times, that just causes undue anxiety and stress on us. And if we change up our meds because of denial (and believe me, I have done this on many occasions), we just make things even worse.

Nowadays, I'm trying to go with the flow and talk things out about diagnoses. Though, my therapist always says that my meds help me, and that's what I cling onto when I feel lost in this mess. However, sometimes I do forget that or question her opinion, so I have to ask her again and again. But it's better that I talk to her than to just go off and do things on my own. (I dislike my pdoc, so I do not talk to him.)