What disease is indicated by constant breathlessness and severe pain in the back and chest in a patient with a hemoglobin level of 13g/dL?

The presence of constant breathlessness and severe pain in the back and chest suggests a respiratory or cardiac issue. In the context of the symptoms described, Chronic Obstructive Pulmonary Disease (COPD) is a likely consideration due to its common association with breathlessness, particularly in cases where there is a history of smoking or exposure to respiratory irritants.

While hemoglobin levels can provide context regarding oxygen transport in the blood, a hemoglobin level of 13g/dL is generally considered within the normal range for adults, making it less indicative of anemia or blood disorders like Hemolytic Anemia. Furthermore, the acute nature of severe pain coupled with breathlessness leans more towards respiratory conditions rather than infectious diseases such as pneumonia.

Myocardial Infarction, characterized by severe chest pain, can present similarly but is typically associated with indicators such as elevated cardiac biomarkers and other symptoms like nausea or diaphoresis. In this scenario, the description fits more closely with COPD, where chronic inflammation leads to airflow limitation and can present as ongoing breathlessness and chest discomfort.

Focusing on the nature of COPD, it affects lung function over time, leading to progressive respiratory symptoms, exacerbated by physical activity or respiratory irritants. The back pain can also relate