Go to the dentist, it sounds like an abcess. These things can turn nasty if left untreated.

I left one growing for over a year, and it wasn't until my tooth fell out that I went to the dentist and had it treated. It was spreading across my whole cheek this thing.
Staurm Reviewed by Staurm on . Help please, my gum is really messed up. Im not sure if its an absess or what. But wen i press on a part of my gum it hurts into my tooth and Vice versa. and i looked at that part of my gum in the mirror and its rlly swolen and when I brushed it it started bleeding. Is this most likely an absess? Rating: 5