A hemoglobin level of 5 g/dL is very low and requires immediate medical attention at an emergency department. Your symptoms of pain and yellow skin suggest a hemolytic process, such as sickle cell crisis. The most critical immediate treatment is a blood transfusion to safely and quickly raise your red blood cell levels. To help you feel comfortable, doctors will provide intravenous fluids for hydration, oxygen therapy, and pain-relief medications like acetaminophen or stronger analgesics. Once you are stable, long-term treatments like folic acid or hydroxyurea may be discussed. Please seek urgent medical care so doctors can safely treat and support you.