###Human: I am suffering with sudden bouts of loose motion. Please help. ###Assistant: Hi. Such diarrhea is seen in Irritable bowel syndrome (IBS). IBS is of three types: You seem to be suffering from IBS diarrhea predominant. However, IBS is a diagnosis of exclusion. We investigate suspected cases of IBS with thyroid profile, fasting blood sugar and ultrasound abdomen. If all investigations are normal as you have mentioned blood and stool test (considering these investigations have been performed), then you are probably suffering from irritable bowel syndrome. In case you ever have had blood or mucous in stools, you require a colonoscopy to rule out any evidence of inflammatory bowel disease. I advice the following for treatment of IBS: Idiopathic. Routine. IBS. Stress free life.