PMS Cure. There are many different symptoms that are bundled into a diagnosis of pms. Menstrual cramps that occur just before menstrual flow may be indicative of endometriosis. If you have irritable bowel syndrome, ie diarrhea around the time of your menses only, this may likely be endometriosis and can only be diagnosed with laparoscopic surgery. Endometriosis can not be cured, but it can be managed.