I had an amateur MMA fight probably six weeks ago. I KO'd the guy, but my right hand was killing me. By the next morning it was blown up like a balloon. I went to the doctor who ordered me to get it X-rayed which came back negative. Here we are six weeks later my middle knuckle is still swollen. I cannot put any forward pressure on my fist. And it hurts to clinch it closed. Can anyone point to what might be wrong with it? Thanks in advance.