I have been stretching my jaw. It only opens a little more than 2 fingers. I started getting worried after this discomfort started. It does not hurt to open, but when I close my mouth, I have to really bite down to get my right teath to hit after the left side has. It seems like the muscle is swollen a bit. Also when I chew on that side, I feel a tearing sensation at the top of the muscle up on my skull.
I have been massaging it to try and get it to loosen up. I am guessing it is scar tissue from the radiation. I don't get back home for another month, so I won't see my Doc for a while.