When i feed it can,t digest.the food remain undigest on my stomatch .b/c of this i have pain in my stomatch & lower abdomen until i attend the toilet.

Have what symptoms?: Maldigestion is when your food does not get broken down (digested) in your gut (due to problems with pancreas, bile flow, hyperacidity, enzyme problems like lactase deficiency, sibo, etc.). Malabsorption is when your digested food is not absorbed by the gut (due to inflammation like crohn's, dysmotility, mucosal disorders like celiac disease, whipple's disease, tropical sprue, etc). Same distress.