###Human: What could cause immediate sensation of passing stools post meals in a diabetic? ###Assistant: Hello. Your mother-in-law problem could be because of certain diabetic drugs also. I will be able to help you better if you can upload the list of medications she is on. And since how many days is she having this problem? What is the stool consistency, watery, or semisolid, or solid? Does she have any abdominal pain? Has she lost weight? Awaiting your reply, depending on that I will be able to help you better with appropriate treatment. ? IBS (irritable bowel syndrome). DM (diabetic mellitus).