In general, diagnoses are just labels describing a set of symptoms. You are NOT your diagnosis. A lot of people feel shame about their diagnoses. I know I felt shame when I was diagnosed diabetic. My own mental health diagnoses were mostly a relief. To me it was like I finally knew what was wrong and my treatment/prognosis. I also felt validated that I wasn't faking it. The only diagnosis I struggle with is PTSD. I'm coming to terms with it, but at the start, I just felt like my trauma wasn't bad enough.

I don't know if any of that helps? Maybe just listing your symptoms to you T will help her? Or maybe try writing it down for her. I've written L many times about things I can't say verbally.