There are a few possibilities for what it might be(cyst, infection, boil, etc), but you will have to make a doctor's appointment to have it looked at.
It's been a while, but the lump seemed to go away. I didnt go to the dr. Or anything, but they don't hurt anymore and I dont rlly feel them either.
Were you sick when you first got it? It could have just been a swollen lymph node, which has now shrunk back down or a cyst that has shrunk.
I dont recall being sick during the time, but it has gone away so I think it may have been that.