Thanks for contacting healthcare magic. You have problem of watery stool and whitish yellow color stool that may be because of intestinal infection like giardia parasitic or viral or bacterial . Gastroenteritis may ruled out. More mucus secreation occurs in celiac disease or ulcerative colitis problem. Proper physical examination and history give exact idea about disease. Stool examination test is helpful for diagnosis. Abdominal ultra sonography is helpful for diagnosis. Consent a physician for further diagnosis. I hope my guidance is helpful to you. Take care. Thank you.