Having +hpylori after one dose , positive occult blood struggling with shortness of breath , low mch and mchc of blood , black stool and bloating sometime ?

Black stool: Your red cell indices are consistent with iron deficiency or blood loss. Black stools, if they're not caused by taking iron or bismuth containing products , are signs of bleeding from high up in the gastrointestinal tract. Usually the causes are bleeding peptic ulcer or acute gastritis. You must be evaluated by a gastroenterologist and undergo a gastroscopy for proper diagnosis and get treated