Hi, I am 55 and have a robust health history including Hodgkin's in remission and congestive heart failure.
A few years ago, I had an alarming episode where my normal bowel routine suddenly stopped. Instead of passing stools, I passed large amounts of gas accompanied by a small amount of yellowish mucus. This lasted for over a week, at which time I became highly concerned. I thought I might have some sort of intestinal obstruction caused by parasites, as some of the stool fragments that passed with it looked almost worm-like. I took over-the-counter pinworm medicine, no effect. Went to the doctor, got a referral to a gastroenterologist. They ran an entire panel of tests, including a full colonoscopy, CT scan of my GI tract, and a panel of stool tests for parasites, occult blood, etc. Everything came back negative. I was able to get a bowel movement after taking laxatives but the problem persisted for a couple of weeks at least. At times I had severe abdominal pain, probably from bloating/trapped gas. I couldn't get any further help out of them.
Ever since then, I've had an almost identical episode every 5-6 weeks or so, though thankfully without the abdominal pain. Normal bowel habits stop, I end up passing mucus/gas, and any urge to fart must be weighed carefully as I could release a bolus of mucus with it. And sometimes there are some small stools mixed in with it. So I end up going to the bathroom several times a day just to release mucus, which is a real pain as I work in the field where usually only port-a-potties are available!
I've found a few explanations from "Dr. Google," including IBS, intestinal bacterial bloom and a few other things. But no one can seem to give me a diagnosis of anything.
I've tried a number of OTC/herbal things like probiotics, an herbal creation called candibactin, peppermint oil, etc. - nothing seems to have an effect. I get some relief from milk of magnesia and/or bisacodyl-based laxative, but the episode pretty much has to run its course after which normal bowel habits resume.
So, it's just become something I live with, though it would sure be nice to not have these episodes.