I'm not sure if my first message showed up or not. I dont think it did. so I will repeat my question. How do pinworms live in the vagina for months with no food? I've had them in my vagina for a little more than 4 months. Sometimes I will feel a strange whirling scenation and i will wipe and find one or two black, round things about the sign of a small tick. i know these must be the larve stage of these worms. So that tells me that they must be breeding in my uterus . Any thoughts would be appreacited.