I was first diagnosed with BPD by a psychiatrist at a state hospital who interviewed me for fifteen minutes while reading my chart at the same time. I didn't believe him because what the hell does he know?

I spent years struggling to prove (to myself? To him? To the world?) that I didn't have BPD. For instance, I eschewed all romantic relationships because I didn't want to have BPD and if I never got involved with anyone then I couldn't possibly have a history of tumultuous relationships.

Then twenty years later I saw my current therapist. Took me six months to really open up to her but at that point she diagnosed me with BPD. This time I believe I have it (and had it all along).

Sometimes a$$hole pdocs who only see us for a short time period are right. Not saying it's true in your case, but it was in mine.