Welllllllll, I've just been grossed out for a lifetime.
I had another one of those hard things in the back of my throat, one of those calcified things on the tonsil that David mentioned. Got my q-tip, dipped it in salt, started scrubbing. Then I was poking around in my mouth trying to find it again (watching myself in the mirror with a flashlight pointed in my mouth) AND ALL THESE GROSS THINGS START POPPING OUT OF MY TONSIL.
I thought "Oh no! Worm eggs!" I managed to save four of them. The rest I either swallowed or spit out. Oh god, it's so gross. And I take good care of my mouth.
I think I need my tonsils out already