welcome to HealthcareMagic
Since you have done stress test
then i guess you may have suffered a discomfort or uneasiness after exertion and you have done it on advice of a Cardiologist.If the stress test TMT is positive for reversible ischaemia then there should be some underlying cause that is atherosclerosis
or blockage of coronary artery.So the next step at 62 yrs with reversible ischaemia probably should be a Angiography
and if needed Angioplasty
with stent depending upon the condition and the amount of blockage seen in Angiography.