Recently i noticed that when i chew, my tounge starts to hurt in the back, on the left side. I have braces, so i thought that the wire might be poking it, but that didnt seem to be the case. I looked at my tounge and its pretty far back, and its a white pimpilish looking bump on the left side of my tounge. I guess its rubbing against my teeth when i chew, and thats the only time it hurts. What is it, and what can i do to get rid of it? Ive had it for about 3 or 4 days.