This is an important question to discuss with your cardiologist
. In the United States, the most common causes of heart failure are coronary artery disease (CAD) which are the blockages you referred to and high blood pressure
that you currently have. Thus, it is possible and probably likely that your heart failure is caused by one of those two things. Congestive heart failure can result in both of the symptoms you are experiencing. Patients often complain of shortness of breath with exertion and swelling in the legs. The treatment for congestive heart failure should focus on treating the heart muscle itself with medications, and making sure that the coronary artery disease is treated and the high blood pressure. Medications that most physicians use would include a beta blocker, an ACE inhibitor, and a statin for your heart failure and coronary artery disease along with your blood pressure.
You definitely need to follow closely with a cardiologist for these problems. The first thing that needs to happen is your doctor
needs to review your cardiac history and make sure that all the blockages you had in your arteries are taken care of. This might require a stress test or a cardiac catheterization. After that you need to get on the right medicines to bring your blood pressure down and improve your heart's function.