I am passing half pieces of white rice looking worms that also are coming up in acid reflux type symptoms.. Bloating , constipation wrap around food consumed or meds anything that goes down it wraps it up like a taco. some are fleshy type looking stingray. this has been going on for 6 months and stool comes back neg for parasites or worms but visible to eye. This sounds strange but flem looks like grub worm when comes up