When I have a fissure, it HURTS. ***BAD*** Think sitting on broken glass, than pouring sal***er & lemon juice in the cuts. You'll be about halfway there. For me, a fissure rates up there near kidneystone pain. And of course they bleed. They can produce frightening amounts of blood ( to look at, its never as bad as it looks, fortunately).
If you have a fissure you generally will know.