Hello. Thank you for your question and welcome to HCM. I understand your concern. Well, with this information and your age of 52 years old, the right thing to do would be a complete check-up with a series of tests, so we can be more sure about the origin of your problem, whether it is from the heart itself or from age-related hormonal changes, which affect the heart. First, I would like to explain angina - chest pain originated from a narrowing in the coronary arteries - to you. Angina is more like a chest tenderness or heaviness that radiates to the jaw, left shoulder and left arm, sometimes to the stomach area. It is triggered by exercise and alleviated by discontinuing it. It can last up to 15 minutes. The person that is subject to angina can point exactly to the exercise as the culprit of this kind of pain. An EKG should be done, to assess the heart electrical and conduction systems in resting state. This should be accompanied with an echocardiogram, to assess the heart chambers, valves and heart muscle in aspects of size, function and movement. If found reasonable by your doctor, a cardiac stress test should be performed to rule out coronary origin of the pain. If this latter test comes back positive, it is indicative of problems in one or more of the coronary arteries that supply the heart with oxygen and nutrients, and coronary angiography would be recommended at that time. Also, I would recommend a 24-hour Holter rhythm monitor or an episode monitor, about the bursts of fast heart rate you refer, to assess if these phenomena are worrisome or benign. I hope I was helpful with my answer. Wish you a good health. My regards, Dr. Meriton