Hello Thank you for trusting HCM Dear as such you know IBS caused by health experts believe that faulty communication between the brain and the intestinal tract is one cause of symptoms .. In some people, this miscommunication causes abnormal muscle contractions or spasms, which often cause cramping pain. The spasms may speed the passage of stool, causing diarrhea. exact etiology not known stress and psychological issues, such as anxiety and depression. Hormonal changes, such as during the menstrual cycle.Some medicines, such as antibiotics. An infection in the digestive tract, such as salmonella.Genetics: IBS may be more likely to occur in people who have a family history of the disorders. It is three types IBS-D,IBS-C,IBS-M. we don t know what type of IBS your having in case of IBS C type metamucil little useful. Avoid spicy food and alcohol, Avoid dairy products and caffeinated drinks. Do regular exercise and yoga,soft diet useful. use tab.normaxine twice a day for five days. If symptoms not improved please consult your doctor he will examine and treat you accordingly. Take care.