I've been asked what my physical disability is. I call it a bone or musculoskeletal disease bc it's easier. I have multiple forms of a condition called osteochondrosis, and I have it primarily in the legs, feet, and lower spine. It's not as common in humans. I was first diagnosed at 15yrs old

https://en.wikipedia.org/wiki/Osteochondrosis#:~:text=classification

Osteochondrosis - Wikipedia