Hello sir, thanks for providing an excellent details of your complaint. I would like to suggest you to be calm and analyse the situation carefully . You have already undergone angioplasty
10 years back and as per your history living a very disciplined life except for aberration recently and till now you were symptoms free. You experienced chest pain
only while walking ? or while walking and doing little bit more than your regular household job ?. Needless to say i am assuming you don't have any habits ( smoking
, drinking) as you have not mentioned those. If the amount of work combined don't give you discomfort/ pain then you can wait . The report of your CT scan
shows development of new diseases but in very early days or old disease which have not progressed due to your disciplined life , however if you are symptomatic ( if you are having chest pain / chest heaviness/ breathlesness on minimal exertion or rest ) then i would consider the report to be significant for you. Lastly i would highly recommend an advice from a cardiothoracic surgeon as you already have undergone angioplasty previously .