My father complains about pain in heart and upper area and head after consulting doc we got to know he had minor heart attack and having heart blockages hence immediately as per doc advise we did stent surgery in Dec 2022 After surgery he feels weak and not feeling normal as before also eating habit changed less quantity he is taking and there is no complaint abt heart or previous symptoms but recently going through coughing since nearly a month and having antibiotics and all yeast came normal with high esr 70 long coughing through out day will impact stent in heart? How can make him normal as he before surgery.. please help me with my concerns