I have had IBS type symptoms for over a year now. My doctor has run numerous tests (lower GI x-ray series, ultrasound, CT scan) looking for cysts, growths, diverticulitis and everything has come up normal so far. My doctor thinks I may have endometriosis in the lower intestine however Iâ€™m not sure as rather than get worse during my period my symptoms totally vanish. Because of this Iâ€™m thinking whatever is causing my IBS type discomfort may be hormonal. Has anyone ever had anything like this?