This is embarrassing, which is why I posted anonymously. A few times a year I get this awful itch inside of my anus and I have no clue what it is. That is the only symptom, just itchiness. I know I don't have worms because I've tried every treatment that I can think that it could possibly be. I really don't know what to do, like you can't hardly even sleep it's so bad. Has anyone experienced anything similar to this? If so, what was wrong?