I'd head to the doc, describe what you saw and get him to check your stool for parasites. They are common enough and should be ruled out at the very least.
Worms and mucus do not look the same...
CD 24 years. Multiple surgeries in past 10 yrs. 4 year Illeostomy. Mesh rejection. Too close to death, twice. Large inscisional hernia. Perpetually underweight. Short bowel syndrom. Have used a variety of complementary medical therapies. Highly recommend Bowen Therapy as the best body work. Take me vites. Started Low Dose Naltrexone March 27, 2010. Got married for the only time 2008. Survive because of the love of good friends, and because I can. Happy to be alive. IBD needs more awareness and more voices willing to speak up. BE well.