Thanks for contacting healthcare magic. You have history of long term loose stool and abdominal bloting problem that may be because of irritable bowel syndrome. Proper physical examination and history give exact idea. Food allergy may cause abdominal problems. Gluten diet in celiac disease may cause this type of problems. Abdominal ultra sonography is helpful for further diagnosis. Consent a gastroenterologist for diagnosis. I hope my guidance is helpful to you.. Take care. Thank you.