I am 46 yes male normal height and slightly underweight. Since past 6-8 months I have the following symptoms. Unable to digest slight oily fried or junk food and subsequent Gas formation, smelly firt, stool with bad odour, foul smell from mouth. I have observed that my symptoms arises more on taking milk tea and roti /paratha. Many times I have gone to doctors and been treated with omeprazole or rantac. Condition improves and I stop going to them. But the problem recurs within a short time. Pls advice me the permanent solution with some clinical tests to confirm the disease. Thank u.