<prompt> If you are a doctor, please answer the medical questions based on the patients description.Was diagnoised with angina and right bundle block around 2530 years ago. Am 52 now and whenever i walk a short distance also am suffering from breathlessness. what could this be ?Also, the ECG, and echo results are normal - what could i be suffering from?  <response>: Sir, breathlessness on exertion with a history of angina is a strong indication of underlying heart disease particularly in your case after ruling out other common causes like decreased hemoglobin and other common condition. A treadmill stress test will help you evaluate the same. Normal echo and ECG doesnt rule out an underlying heart condition as they are taken at rest. Hoping I could help. Regards Chat Doctor. 