A little over a week ago, I perfomed oral sex to a friend of mine. I just noticed white spots at the back of my throat, namely the tonsils. They aren't inflamed or swollen, just white spots. they don't hurt or anything. Could this be tonsilitis or some kind of std/sti? no pain or discomfort as of yet, I'm planning to get them check out. but for a small peace of mind for now, can anyone tell me what they might be?