Your FU was waiting to see a doctor, but you’re taking care of that now. Describe your stool besides the blood, is it liquid or hard solid? You might have cancer, but even if you do that doesn’t mean it’s fatal. You also might have Chrons disease, ulcerative colitis, or any other IBS. You also might have a parasite or ringworm. It could be lots of things, so don’t freak out right now.