question: On my left side of my mouth above my second molar there is a bump about the size of a pea that is very sensitive to pressure. When I press on the bump if feels as if I m trying to pull out my molar. Any idea what this bump could be. About 5 years ago I had a filling done on this tooth. There is no pain coming from the tooth though. Only pain from the pressure of the bump. It s getting to the point now that when I m eating occasionally it will bother me.