Anonymous: Every once in a while, often after waking up, my vagina makes farting noises. I can feel it, too. Like there's a build up of air there or something.
This is completely normal. The vagina is a muscle. If the muscles in the vagina relax, air can enter through the vaginal opening. Tightening the muscles will force the air out and it can cause a faring noise. This is completely natural. Sometimes it can even happen during vaginal intercourse.