About 2 months ago I was out drinking and out of stupidity punched a pole very hard. It didn't hurt very much at the time, as i was drinking. The next day my middle finger knuckle and the parts closest to it were very swollen; My knuckle was double in size and didnt have the shape of a knuckle anymore. My hand hurt a good amount when opened/closed it. I decided to just leave it alone. The swelling went down gradually over 3 weeks or so. After the swelling went down all the way, my knuckle still hurt when i put pressure on it, but i thought it was just still healing. It has now been 2 months, i have full range of motion without any pain, however when I apply pressure to the knuckle, it hurts a good amount. Also, in the top right corner of the knuckle it almost feels like there is a hole and i can move what feels like a piece of bone around without pain really. I am writing this because my friends and I joke around alot and give each other 'dead arms' or just punch each other in the arm and today after punching a friend in the arm my knuckle really hurt. Is it going to heal itself? what could be wrong with it? I have heard that a fractured/broken knuckle kills so i doubt i have that. Also do i need to see a doctor? what could they do to help? I've been hoping to get into boxing, but if i can't punch that won't be happening. help.