Hi,  I've been noticing for a while (perhaps around a year) that I have a small soft bump on the edge of my upper lip on the right side.  I haven't bitten myself or hurt myself in any way that I can remember.  I thought it was just the shape of my lip on that side for a while, then it seems to have grown a little.  This morning I noticed it is coming to a small head (a little like a pimple), but it is not painful in any way and when I run my tongue along it, it just feels like a little bump.  Could it be anything serious like cancer or is it more likely to be a mucocele?? Please advise.  Thank you

Summarized question: What are the symptoms of mucocele?