So tonight I just noticed a little dome-like swelling on my lower jaw behind my last molar. It feels pretty firm to the touch. It doesn't hurt too much at all. I have noticed that the same area that the swelling in has been sort of weird when I roll my tongue over it. This has been going on for several weeks and I'm just wondering what you all think it is. I'm still a kid, I haven't had those particular wisdom teeth taken out. Please help me im worried sick.