A week or so ago I noticed a small, bright red streak of blood on the surface of my stool. There was none on the toilet paper or in the water. Since then I've been feeling a sort of mild discomfort in the rectal area. The blood, however, has not reappeared. I've looked up the symptoms and I think it's probably internal hemorrhoids (although I am getting it checked out by a doctor).
Is it normal for internal hemorrhoids to bleed once (perhaps with an unusually hard bowel movement) and then not bleed again, while still causing some discomfort? Would the bleeding normally occur most times you empty your bowels, or only when you pass a particularly difficult stool?