I Have Had Stomach Problems For Awhile Now. I Have

I have had stomach problems for awhile now. I have had test done to see if it was my gal bladder and a scope to see if I had ulcers, both came back negative, I do have a hernia. I usually get pain & nausea then bloating/diarrhea, it will last 4-5 days if I don't take immodium. I have recently had stool that is a clear mucus consistency with blood.