My husband who is 73 was diagnosed with high blood pressure four months ago, and prescribed Amolodipine which has brought his bp within normal range. He had an EKG and was then told to have an echo. He has now been told that the 'echo' showed 'low flow' and is being referred to a cardiologist. He has no symptoms of heart problems. How worried should we be? I assume he has heart disease, but what questions should we ask?