I sometimes have a tiny little bump on the inside center of my lower lip... I say sometimes, because I can notice it for a couple of hours, and then have it dissapear, but every now and again it'll appear, in roughly the same spot. It's either flesh colored or clear, and just tiny... Not much bigger than a pencil dot. It doesn't do anything strange and there is only the one-- The only reason I notice is I can feel it against my gums. What do you guys think?