I just want to say I understand. I went through a similar re-traumatizing experience and, oddly enough, this was while having EMDR. I had a very disturbing memory of something I rationally couldn't remember at all, and my T just said it wasn't important and wasn't worth exploring it further. She was a certified EMDR T, but I'm sure she wasn't very experienced. In fact, I've been much worse since that day, with very bad symptomps. I didn't even have very bad PTSD before that, but afterwards it just became worse every day.

I hope you can find a solution that works for you