Please ask your cardiologist to test for inflammation in your arteries, also visit your dentist and ask for a deep cleaning of your gums ( high source of inflammation). Cholesterol causes plaque and Drs are happy that your levels are below the highest levels accepted. Ask for a cholesterol pill. Research BP medication and chose at least two that will work with your other meds. The lower your BP the lower your chances for a heart attack. I will recommend an exploratory Angiogram to determine the severity of your plaques problem. I have been exercising my whole life and had two heart attacks after gym sessions. Be proactive and find a cardiologist that will listen. Due diligence is your best friend. Good luck.