Hi Dear, Welcome to HCM. Understanding your concern. As per your query you are having symptoms of sporadic diarrhea and constipation along with yellow mucus. Well there can be many reasons for symptoms you mention in query like gastroenteritis , food poisoning , irritable bowel syndrome , lactose intolerance , giardiasis or intestinal Ileus. Need not to worry. For now eat light and non spicy , avoid food like seafood and nuts , take antacid after every meal and keep your head elevated while lying down . I would suggest you to consult gastroenterologist for proper examination . Doctor may order stool test , ultrasound , endoscopy along with that take history . Doctor may prescribe laxative , ornidazole or albendazole , anaspas along with ranitidine . Avoid laying on bed after immediately having food. For now drink lot of water, do light exercises and avoid fatty and heavy meals. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari