I see undigested food in my stool from (last night meal) for the past few weeks.. I have GERD..but there's no heartburn just excess belching all day long and if i drink lots of water,when I burp it does comes out sometimes..even did an ENDOSCOPY and found out that my LES is loose...been taking PPI's for more than 6 months and prokinetics for more than 2 months..normally food from last night meal shouldn't be there in my next morning stool but I see mainly leafy stuffs like coriander,cabbage,cucumber seeds,leeks undigested from last night meal..please help