I have had diarrhea for a very long time. Probably 5 to 6 years, and it never goes away, even with Anti-Diarrheals. The stool is sometimes bloody(not alot) and always greasy looking and sometimes black. I had a colonoscopy and an endoscopy done about 2 years ago. They did not find anything except a few poplyps which they removed. I just want to know what if anything could cause this. I dont currently have insurance but I guess Im going to give it another try when I do receive insurance. I feel like there may be something very wrong. Any input on the situation would be greatly appreciated. You can also email me at ***@**** if you have anything that may be of help.