Gum Pain Anyone?

I get intermittent pain in the inside gum line in my upper jaw. The tissues engorge & get achy. It usually happens on one side at a time. I can feel w/ my tongue that the offending gum line is swollen (I can actually feel it as it swells). It goes away after a few hours. I know it sounds kinda bizarre (ES is bizarre), but it's happened several times & seems to be getting more frequent.

My surgery is tentatively scheduled for 11/20. Just in time to keep me from over-eating at Thanksgiving. ;)