I've had many dreams where I a am in a situation where something should hurt, but it doesn't because its a dream right? But last night, something very strange happened.

I became lucid, however, I had no idea where I was, it was just a black foggy abyss, and the only thing I could see were my hands. When I became lucid, I immediately counted my fingers and concluded I was indeed lucid.
About 5 seconds after this, I could feel myself waking up, and so I said "No! I don't want to wake up yet! I'm not going to leave!" As soon as I said that, I felt an extreme pain that shot through all of my teeth and gums, I have never had something hurt that bad In a dream before. And so, I gave in, I said "Fine! Ok, I'll wake up!" After I wake up, the pain vanishes.

Any thoughts?