Temporalmandibular disorder: things to know as a fighter
TMD (we'll call it that since it's easier) is a pretty minor thing for the most part, it's just either a sore or unaligned upper jaw so I didn't think too much of it whenever I got it three weeks ago. Now I actually have to go get oral surgery for it, which is a bitch, because that means no sparring for quite some time.
I originally thought it was just an ear infection, as there was an inordinate amount of pressure behind my left ear. I went and got it checked out after the 3rd or 4th day, and the doc told me TMD, which was no sweat I thought. Normally you just have to ice it, don't sing or yawn too much, don't spar, and take a few Advil to help the pain. You can get it from any sharp blow at the right angle, from any kind of impact. Mine was actually not from an actual punch that I know of, it just started hurting when I was at work. I'll let you guys know what else they find out, but if anyone else has those symptoms (pressure behind the ear, sore jaw, etc.) that's what you've got.