need some help with family issues.

I’m going to do a psych eval soon, per my mother’s wishes. I’m— excited? Kind of? I’m happy that after three years I can finally rest easy and get these diagnoses. But I’m also, somewhat, scared? It’s understandable, the last psych eval I did ended in chaos — with me only getting a diagnose of unspec-anxiety and getting off with no therapy. My mother is slightly worried, but believes I’m “a-okay” and am just having a reaction to allergies (which makes. zero. sense in my book). I want to tell her that I’ve attempted eight times but I’m scared that if I do, she’ll disown me in a way. She believes that I’m fine. And I guess I want to tell her that I’m not, but I am? I want her to care, but don’t want her to worry too much? She’s going through health issues currently and I don’t want to make her panic even more — but I feel that if I do let her know, we’ll bond, or perhaps the eval would go on faster? Any thoughts, ideas, and comments on how to address the situation?