hello, at night it feels like something is crawling out of my butt. it just happened a few minutes ago and i couldn't sleep because of it. as it subsided it felt like something was crawling back the other way.. i also frequently have a lot of the symptoms listed on the wikipedia about intestinal parasites like abdominal pain, chest pain, weight loss/weakness/fatigue, insomnia, cramps, and more. these things have been happening on and off for about 3 years i think.