My family doesn't believe me either about my bipolarII disorder, my dad sometimes acceptces I have PTSD, but overall they just won't believe me, or they invalidate my diagnosis. I think family has a hard time believing this, because they feel they failed as parents, sibilings, etc. I know personally that my parents probably feel it is a reflection that they are bad parents, or raised me wrong, they can't accept that it's chemically inclined, my parents will accept depression (something they both struggle with, althought one time they tried to diagnois my mom as manic depressive) but not bipolar II. I think another part of it is the media, and the stigmas and misconcepts about being bipolar.

I"m lucky I have a few close friends that accept this and help me through my extreme mood swings (when I'm able to reach out)

Maybe you could try educating them on the disorder? I tried that with my parents, but they just turned a blind eye, but maybe there might be hope to try with yours

I understand so well Leah what your saying, I"ve had all of those things said to me by my family, and it hurts, I take comfort in that I know the truth and so does my T and pdoc, sometimes that is the biggest comfort we can take shelter in.

Best Wishes
Typo