http://articles.mercola.com/sites/articles/archive/2008/01/02/menstrual-cycle.aspxThe menstrual cycle can affect bowel symptoms in women with inflammatory bowel disease or irritable bowel syndrome. The symptoms of such disorders range from abdominal pain and diarrhea under stress to more severe bowel inflammation that can cause feverenCommunityServer 2008.5 SP1 (Build: 31106.3070)