instruction: hello doctor my stomach gets upset when I drink milk orange juice or even yogurt which is normally good for an upset stomach I cannot digest banana corn flakes and many other foods and it has been going on for a long time I have been to many doctors and they had endoscopy and colonoscopy tests but nothing came out bad please help
output: hello I can understand you must be very upset about your condition so you see the diets you are kind of allergic to are containing milk protein yes there are some diets that contain no milk but the diet that predisposed you to have stomach upset will disturb your stomach as often as one has allergies to almost every diets the person takes so I suggest you to cut down your dairy intake it occurs due to the deficiency of an enzyme called lactose which usually digests the milk or you can purchase a commercially available drug containing lactose enzyme tablet lactaid 900 fu just every time before having a milk based diet if you want to discuss more I am here to help follow up in one week