I have IBS and I always have to take an enema a day and laxatves and all that. I hear and feel gas and food in my back and intestines and it is very uncomfortable. I know the bubbles and mucus you mentioned, it is old or undigested food. galbladders have a role in excreeting the bile to break foods down but if it does not work these stools can happen, or no stool at all....email me at Sunkistclover@aol.com Heather