My son is 9 he has atrial ectopic tachycardia, he has been more tired than normal and he is loosing weight. should i make him an appt. or is it norm.

First, take him to: His pediatrician along with a good history of onset, duration, severity &frequency of specific symptoms &their impact on his daily functioning at home &school. With thorough history, physical &neurological exams, his pediatrician will be able to advise you on the next steps. These, most likely, will include re-evaluation by his pediatric cardiologist, along with any other needed evaluations.