Sometimes it may take time before individuals can accept a diagnoses. Doctors can get it wrong or right. Maybe fore the moment you could just ask your t not to say certain things because you feel like you are being dismissed. No-body likes issues to be dismissed or minimalised.

It always important to feel heard. Do what feels right for you. I have been in therapy for some time and T's have changed as I have changed. It's never been a race to the finish.