11 years ago I had a major operation to remove a cancer lump from my tongue followed by radiotherapy and all has been well. However over the last week on the side which I had the lump removed I have been getting a lot of pain within my teeth. It's a bit like toothache but when I put my teeth together there's a fullness feeling (hard to describe). I know that radiotherapy weakens the bone within the jaw. Does anyone know if this could be what the pain is.