Hey BC,
Sometimes I think that obsessing about labels, is just the minds way of trying to understand itself. If we can apply our attention to the "science" of diagnostics and give it a name, a home, a reason for action and behaviour, then we can better know ourselves.
Personally, I don't think there is anything wrong with being strong in conviction. We may not understand the DSM(psychiatric diagnostic manual) but it does not stop us from trying to be on a level playing field with our therapists. The more we know and empower ourselves with, the better time we have of being able to stand up for ourselves.
However, we have therapists for a reason. IMO, they are there to provide perspective and counter arguments. If you do not agree with the "label" you have every right to question it and be provided with logical and rational reasons for the label.
It comes down to trust, hon. Do you trust these people with your life, your mental health? It is very hard to believe someone if you don't trust that they have your best interets at heart. I wonder if you would feel less obsessed with labels, if you felt that ALL possibilities were being explored. If there is a trust issue, bring it up in your next session.
You know a bit of my history BC. I would hate to think that one other person on this planet could go through what I did. I only wish SOMEONE had helped me to understand my right to push for better answers and better mental health outcomes many years ago. It may not have taken 36 years to reach the RIGHT dx and the right treatment.
Take good care babe. Obsession is never good for your spirit or your mind, but conviction is. The only way to reach a good therapuetic outcome is to be listened to, for your thoughts and feelings to be validated and to have alternative hypotheses to be tested properly.
Big hugs
Michah