Help with endometriosis...intestinal symptoms

Hi:
I have endometriosis and for the past two years have been presenting intestinal symptoms like blood in the stools the two or three days before my period statrs. It's not a lot of blood but small patches in the stool. Doctor says my intestines all right and that it's another symptom of this desease. When period starts I loose two or three days of work because I can barely stand and walk to go to the restroom. I can't eat for 2 days every mont because I'll throw up everything I eat. I've tried a lot of thing to get better but so far nothing seems to keep me from loosing 2 or 3 days from work and about one week of debilitating pain and fatigue monthly. I'm doing restorative yoga and a program called yoga for endometriosis. It helps with the fatigue and stress. Any advice on this will be of great help. I feel tired, sad and frustrated. Tweet