Round pink lump on the underneath side of upper lip

[smmaho]

Today I noticed a pinkish smooth round bump underneath my upper lip. It is almost a cm wide. It is painless and I'm starting to get quite worried. I don't remember biting my lip or anything like that. Part of me wants to google and a part of me wants to run to the dr tomorrow....I am a regular visitor to the dr because my mentality is if its caught early there is more chance of getting a better outcome. I have no idea how long it's been there for and course I'm thinking oral cancer however I am a 25 female who doesn't smoke so I know realistically its unlikely but still the thought is there in my mind