A broken finger.
When I attempted to become black belt I had an accident and one of my feet got rekted pretty hard. I can normally walk and run, but I still notice a "clack" sensation at times and the finger moves because it was luxated. Also a scar in my chest, and I almost got my nose broken once because I got kicked in the face during a ju kumite in class.
Oh, and I also a fucking autist rofl. I have autism, like, literally (diagnosed Asperger).
It's OK because I love books and it makes be being le smart and edgy, but the part of being socially retarded is just bad. I simply don't know how to interact with people at all and sometimes I don't truly understand what is "right" or "wrong" morally speaking. I appreciate the IQ boost, but the problem is that the self-diagnosed ones give us a very cringy image and thanks to them people don't even believe us when we say we have Asperger on the Internet.
Now I take it with humor, but on a seroius note, Asperger makes you suffer a lot.
The problem is that I don't know how to be "normal". Sometimes I wish I was a normie again.