It is hard to trust after feeling betrayed, but sounds like you feel confident with this new psychiatrist, so I would be truthful with her. If you do get a Bipolar diagnosis it is not the end of the world. There is no reason for anyone to know but you and who you choose to tell. The only problem I ran into is when I tried to get private health insurance. I was denied due to the Bipolar diagnosis. That is the only time I have been asked to disclose my diagnosis, otherwise, it is off limits to jobs, friends and relatives unless you choose to tell them. So be honest with you doctor and let her make the correct diagnosis so she can help you. Good luck.
Gayle