I doubted my DX too, because I am "normal" 80% of the time, depressed or mixed or hypo 19% of the time, and only been totally manic and hospitalized twice, so less than 1% hyper-mania.

I told my doc, "but the two times I was hospitalized, was due to extreme stress and drug use."

The doc said, "but only bipolar 1 people go into hospitals for extreme psychotic mania from stress or drug use. If you weren't bipolar you wouldn't have the extreme episodes that you had."

So, several docs have confirmed I'm really bipolar 1.