I agree with the biting...I always thought it was my gallbladder and the night this brown worm ripped lose and deposited itself in the banyo...The pain was gone. Also a section of what I think is my small intestine tightens when I ingest or rub something on the area it does not like. Get this!! I tried the milk enema, not without feeling like a hmmm...whats the word? Complete lost soul...and I'm telling you, got globs of jell out (some pieces looked like jello...BIZ-are (only held it for 20 min. sorry for the gross details)... Who knows!! But what I do know, is whatever this is, needs to be evacuated...Snif snif...