Hello! Thank you for the query. You definitely should see your doctor sooner. Blood in stool, fatigue, lack of appetite, anemia can indicate some blood loss to the digestive tract. It can be stomach disease, inflammatory bowels disease, large intestine polyps or even colon cancer. Anemia is not a disease itself, usually it is a symptom of other disease. And it is important to find out what is causing it. That is why you should have upper GI endoscopy and colonoscopy performed at first. Smear blood test should be done and hematologist consult. Also gynecologist should perform transvaginal ultrasound. Hope this will help. Regards.