You don't have to worry about
"Some patients see gobs of mucous in the stool and become concerned. Mucous is a normal secretion of the bowel, although most of the time it cannot be seen. IBS patients sometimes produce large amounts of mucous, but this is not a serious problem. "
There are some newer stool test that can help seperate IBS from Inflammatory bowel conditions.
"There was a question of Crohn's when I was being tested b/c of a Serology blood test, but is this typical of IBS?"
what was questionable do you know?
There are usally red flag symptoms also for Crohns that are not associated with IBS.
Sometimes they might check for microscopic colitus.
This might be helpful
I am not a doctor. All information I present is for educational purposes only and should not be subsituted for the advise of a qualified health care provider.
Please make sure you have your symptoms diagnosed by a medical practitioner or a doctor.