My mother had massive hear attack on 19th February got angioplasty with a stent (since she is diabetic, the stent used in angioplasty is 2.5X24 endeavor resolute des stent) and a ballooning (2.0X10 slide balloon), she is doing well, however, last two days she have coughing and subsequent vomition, . Since yesterday she had cough and vomition after every intake. is it any complications?