Redness around my gums (need help ASAP!)

Hey, I'm 15. Two days ago, I noticed some redness, almost like blood under my lip. I'm not sure what the technical term is, but when I pull my lip up, there's this bloody patch near the side of my bottom teeth. On top of that, I have this bizarre sensation—it feels like my lower jaw is growing extra teeth, even though my upper ones seem perfectly fine. It’s a strange feeling. It doesn't actually hurt, but my bottom teeth get this weird chill. I brush my teeth every single day, including right before bed. A few days back, I did smoke about five cigarettes (just inhaling the smoke, not deep lung hits), but I don't smoke otherwise and I never will again. 🙂 Help?

Can someone get me a replay? I don't mind waiting while I grab a bite to eat.

There’s already a thread about gum issues. If it doesn't clear up in a day or two, go see a dentist.