This is a really stupid way to hurt yourself, but i guess i managed to do it. Basically I was practicing handstands off the wall of my house in the backyard and i was doing good, so i decided id do it in my small room. The idiot that I was, i succeeded in doing the handstand, but when i came back down my foot slammed into a leather chair in my room, and it hurt. I got pissed that my foot was hurting, and not realizing that the back of my leather chair has a nice thick layer of metal supporting it, i punched it as hard as i could. Long story short, my right middle knuckle seared in pain for a good 20 minutes and i couldnt do anything with it for a couple days.. that was over a month ago. My right middle knuckle however is still a little bit bigger and swollen as compared to my left middle knuckle, and i cant really use the punching bag anymore cuz i cant punch with my right hand without having the middle knuckle hurt evrytime i punch something. Should i see a doc for this or will it eventually go away?