Dani, I'll offer the same advice as Gary, don't borrow trouble as we say over here. Also on top of what Gary says there's a lot of nerves that run the length of the jaw that can cause what I call "misplaced pain." Had a wisdom tooth that hurt and felt the pain in the front of my jaw. couldn't figure that one out until the oral surgeon explained it all.

Also, tumors aren't necessarily tender to the touch from what I understand. It's natural for your mom to feel the way she does though, just try and keep her focused on getting better and not thinking it's a recurrance. Sounds like her doc is on top of things.

Bob