u/Frosty_Smoke_7142

I would like to note it doesn't hurt I can kinda suck it and I can move the bottom of it. I also would like to note my wisdom teeth are coming in as well. Can anyone tell me what is is? I'm also 16 and don't know the history of it. also the very back tooth is the one I'm referring to. I can also move the bottom of it and kinda suck on it