Hey, yesterday I noticed something on the side of my tongue, sort of close to the tip. It's sort of a circle shape --not a perfect one-- and an outline around it... the middle of the "circle" seems more red than my tongue colour. I tried searching, and checked out pictures and the close I've came to is a "tongue ulcer" It's worrying the crap out of me. I got a cold 2 days ago so I don't know if this can be caused by my cold or not. And no, I have not done anything sexually with my mouth

I'm gonna check in a clinic tomorrow if it doesn't go away by tomorrow.

It's KIND of sore... a little numbness, as if you bit your tongue you know?
Any idea what it can be? something that can make me feel less worried.

Thanks. I'm an ex-smoker, it's been 8 months-- and I am just about to turn 19.