My doctor thought i had worms when i was 5. He told my mom the best way to find out if i had worms was when i was sleeping he told her to go into my room at around 12 am or 1 am at night and pull my underwear and look at my butt hole. LOL yep its true. So my mom got a flash light and had to look at my butthole at 1 am. Apparently they come out at night without the person even knowing. I dont know why but thats what he said. I never did have them but my cousin did and they found out she had them by the same method he told my mom to do. So hopefully youll find a candiate to look at your butt at 1 am. Thats the only method i know! Good Luck!