my son 3years old has got fever since two days with no cold\diaheorreal symptom, but he is showing towards the heart area, icant understand whether chest or heart but his palpitationis very high 140,also when feer rises he gets irritated and shows toward the heart are, The Paedeatric doc suggested ezythromycin ( for mild throat infection and adol +tynelol suppositories f for fever , fever came down but palpitation is still high and he is weeping terribly, please help