I know this is gonna sound stupid...

Request a test for bipolar disorder. It may be some work to get to the point where you can get a proper review of your diagnosis but what you have to do is simple.

You know your health better than anyone else, even if they claim they know best. You need one thing - push for it and push every medical professional you deal with.

Just do, it wouldn't hurt sharing your own conclusion. In fact it's better than taking years to find the right diagnosis.

You can also see someone else.

tell her how you feel about the diagnosis, that it might be wrong so she can help you clear it out

Have you considered asking he if you can be tested for that.

Demonstrate the symptoms of a manic episode.

See a real shrink

Ask her what she thinks