I have ADHD, a trauma disorder and anxiety in a family of conservatives so let me lay out what that's like: ADHD is seen as immaturity/laziness, men with anxiety are seen as weak/not masculine and trauma disorders you're basically thought of as being a pussy. I deal with it by not associating with all but a couple of them that I determined were people I could trust.
I was diagnosed with all 3 when I was 32 in my last semester of college. So for 30 years I basically hated myself due to a lot of that stigma being internalized. I did not have to just fight the stigma from other people but my own self hatred.