Have a reoccurring small bump that forms about gum level, but on the inside of the cheek, near my molar, or directly below the corner of my mouth about a half inch down. The bump never hurts, but a pin-point sized area below the bump has a metallic taste when I probe it with my tongue. And if I press my thumb against the outside of my cheek, and squash the bump against my teeth, rolling it with pressure from back to front, a liquid distinctly slimier in consistency than saliva seems to come out of it. I thought I should make sure this is not a sign of something more serious. It never hurts, and seems to only happen every couple months.