Hi, Welcome to HaelthcareMagic Forum.
You should be getting yourself examined by a Cardiologist and get a second opinion
You will require a ECG and Tread Mill Test to rule out if you have angina as your History suggests you have stable angina
You will require anti platelet drugs.
Take all your medications, eat healthy nutritious balanced diet which should include fresh fruits and green leafy vegetables. Avoid stress, anxiety
, smoking and alcoholism
Maintain a Healthy Weight.
Wish you Good Health.