<s>[INST] I keep seeing call your doctor immediately when it pertains to symptoms I ve been having. Yet we cannot find a positive result on any tests. Today marks the sixth month of intense abdominal pain (left side: middle to low). It is more intense on many days than appendicitis (had that 19 years ago). I ve had scopes (endo and colon ); CT scans, SB series (with barium/ Xray ), and most recently an MRA . While they find no cause, I am literally starving as it is the only reliable way to abate the pain. The dark, tarry stool symptom elicits the call your doctor immediately response. [/INST] Hi there, you seem to be suffering from peptic ulcer disease and your treatment lies in taking a course of antacids along with a very regularized and punctual diet with low fat and spices. You will also need to take a course of antibiotics to take care of H. Pylori infection.  Get your stool examined for occult blood and that if positive could indicate ulcer bleed and explains the black tarry stools. Endoscopy may be repeated. Do visit a gastroenterologist and let him evaluate you fora the same. Get your hemoglobin levels also checked as constant loss of even small quantities of blood can lead to iron deficiency anemia, and you may need iron supplementation. Take care. </s>