my 9 year old complains of chest pain and pressure, she also has a heart rate between 73- 100 setting around  her heart pound out of her chest and nothing has been found on ecgs, ekg, or eco what do i check next it has been two years and now she is passing out.
Welcome to Chat Doctor ...please go for thyroid status check up if all the given above tests are normal. I also advise all basic tests as He .TLC ...DLC ...sugar level ...b urea .’s creatinine .