Sorry you are upset over the dx Hope. Whether he is right or wrong doesn't really matter. Obviously you have symptoms you need help with or you wouldn't need meds or be in therapy. Regardless of the dx your T is treating your symptoms.

I know I was in huge denial when my T said I had DID. I still deny it sometimes. But I finally started taking his advice regarding treatment and I am feeling better, am in more control, and am starting to feel better. He has also adjusted how he treats me based on the dx so it ended up being a win win.

You said you don't have insurance so the dx is only between you and yout T. You also may want to consider the fact that he may be right. Sometimes it is difficult and we don't like the label, but admitting we have the problem is the first step towards recovery. At least that was true for me.