These things are much more common than you think.
I've noticed recently that I got them, and that my right tonsil was inflamed. My left is fine, and I haven't squeezed anything out, but the right fuck, I took some tweezers and started pressing the tonsil and out popped some very smelly food. These stones are the result of food and stuff getting stuck in the crypts of your tonsil and then calcifying. So your tonsil is like a zit.
Anyways this video is extremely disturbing, and you might run to the bathroom and check your tonsils for any white things after watching. Although the video is an extreme case, you can watch other videos and see they are usually the size of a nailhead. This is not to be confused with Thrush.
No they don't hurt, and it's something to do with a lot of dairy in your diet. And smoking. I also read Listerine is worse for them, and to rinse with salt water. Chew sugarfree gum and have more greens in your diet.
Also they smell really bad. Like ass, and they are a cause of bad breath.
[youtube]http://www.youtube.com/watch?v=csDW--7DocA[/youtube]
i've had this before myface;