Yes, get new evaluations from a new pdoc.

I carried around the diagnosis of major depression for 10 years before I was correctly diagnosed as bipolar. (Also, as it happened, I didn't have insurance, had to use a state program that was stretched and over-worked for a long period of time.) After the first pdoc made the diagnosis, any subsequent pdoc I saw just seemed to take it in stride that the diagnosis was correct and go from there. I only got the diagnosis of bipolar when I showed up at an appointment for my pdoc in a seriously manic state, so bad she wanted to hospitalize me on the spot. I had just started seeing her at the time, but it also turns out she is just a really good pdoc, heads & tails better than the rest. I am sad that she is retiring and I have to see a new pdoc, but now at least, I have the correct diagnosis.

Especially if you doubt your diagnosis, it is important to be certain you have the right one.