I was diagnosed with fundal mucosal  bledding with erosive gastritis The symptoms of black flakes in stool were there with me since an year almost When i was diagnosed by endoscopy that my stomach is bleeding The doctors were astonished and shocked that she is bleeding since a long tym but her haemoglobin is norml My Hb. Is 13.5 and its 13.5 consistantly ...whenever and wherever i tested for hb it came out 13.5 only The thing is that i wss loosing weight as i lodt 8-9 lg of weight during this scenario but hb was always on norml side How is this possible plz answer .