do you think you could have hemorrhoids? if you have had diarrhea for awhile, like 3 weeks, it is a possibility you could have hemorrhoids. hemorrhoids can also occur in pregnant women that arent eating enough fiber. diarrhea tends to have acid in it, so the bumps around your anus could just be blisters from the acid. you can get creams at a local drugstore for blisters and hemorrhoids.