Hi, Thanks for writing to Health Care Magic, I am Dr Asad Riaz, I have closely read your question and I understand your concerns, I will hereby guide you regarding your health related problem. chest heaviness may indicate some prob like stenosis going on again Bcs ur father ageing history of IHD with CABG n angioplasty , if he was my patient I would like to do proper exam n history that is this heaviness really symptom or he is just feeling Bcs of fear that he already had symptoms of IHD n will do X-ray to make sure it s not pulmonary after it will do ECG n ETT to see its not ischemia again or angio to see whether some artery is blocking or either stent is going to block Bcs it can be .. I would like to make sure that no serious damage is occurred n do echo too to see is there enough ability of heart to pump blood n optimise Tx n advice him for life style changes like not smoke if he is , not eat fatty food etc ..deprsion is comin in ch diseases Bcs of lmultiple drug needed for life long n still function is not improving well enough for which need to counsel about disease n symptoms I hope this answered your question, if you have more feel free to ask. Regards. Dr.Asad Riaz. General and Family Physician..