There are many reasons that stools could appear black or tarry with a foul smell, including eating certain foods or taking iron supplements. However, black stools can also be a result of bleeding, and the darker color indicates that the blood could be coming from a point in the upper gastrointestinal tract. When stools are black or tarry due to blood being present, it is called melena..
Because some conditions coincide with the presence of the disease, the following may be signs of leukemia: Anemia: A low red blood cell count. Red blood cells carry oxygen around the body. This condition may contribute to weakness, fatigue or shortness of breath.
Loss of Energy. Your energy level may drop if youâre suffering from a DHEA deficiency, according to Pick. Symptoms of low energy can include feeling very tired, achy and weak. Low DHEA levels may cause you to lose both bone density and muscle mass, which can leave you feeling weak, tired and more prone to injuries such as bone fractures.