Past couple of days I have developed a smallbump on the left side at the back of my mouth, I think I may of bitten it by mistake, however it might be a sore, thus am taking Repsin, a fruity-like pastille! see if it goes after a few days, if it doesn't go to the dentist, they should know what it is right off!
oh i forgot to ask could this be from cheek biting?
Why don't you go to an oral surgeon for a definitive diagnosis so that your mind can be put at ease. From your description it does not sound serious.learn what it is once and for all.