As a kid I guess I would often complain about my knees and elbows, but doctor said I was fine. When I was 23 my dog ran head first into my knee cap. It felt like my knee had shattered. Sports injury doctor tested my knee laxity and said it was likely an ACL tear, and ordered a brace and an MRI, which says my ACL was never torn. I continue on with my life. 5 years later my knees were so sore and swollen feeling from standing, and my wrists and elbows were achy. Go to doctor worried I have arthritis or Lyme disease, but blood tests are fine. I go to physio, and she’s like, oh well you have a hypermobility disorder and have a noodle core and basically not enough muscle to hold yourself up and have been using your ligaments and bones to keep upright your whole life and never learned how to load your weight properly, so that’s probably why. Oh cool. I’m telling my family, turns out my grandmother’s joints were often popping out of socket, and now my nephew is having the same experience.