Thank you for putting up your question,
These ECG changes mean that you may have some injury to the inferolateral portion of the heart.
In this case we need to evaluate it further.
You need tests like Exercise tolerance test and stress echocardiogram
to see whether you have some underlying coronary artery
disease which is causing your symptoms.
Your doctor should consider adding aspirin
to your treatment regime as this medicine lowers the risk of mortality from heart attack
Do light exercises, keep weight in normal limits, do not take red meat and fried items.
Let me know if you need more help.