Hi, My father underwent heart stent procedure as he had heart attack two months back .In first month in a gap of 15 days he had vomiting twice , reports were normal doctor said it was due to gastric problem.Again after one month todAy he experienced vomiting.Im worried he had no vomiting problem before stent procedure.can you please help me if he need to take any other test . ECG ,Echo and trop t was done before reports were normal .