My sister, who recently became a physician and is now interviewing for residency, says it's not a big deal, even "normal." It's not from your throat but from your tonsils, and it's debris that accumulated in the ducts for your saliva! Or something like that...I'm paraphrasing, and I'm no medical professional...well, actually, technically, I am, but not a doctor...
__Anyhow, you'll live. And for God's sake, why're you playing with it?
__Oh, if you do get an infection, you'll know it. Your tonsils would hurt, swell, and turn red.