Hi
thanks for your quiry at HCM
i know you concerns for your cute daughter
its always good to seek medical attention for
chest pain in children
it can be due to lung or heart disase
some cardiac problem start to manifest around this age
do she vomits blood?
this type of feeling can be seen in pateins with pulmonary hemosiderosis
so get an ECG , CXRay done and consult your doctor for the treatment
i will be available for your help
wishing you a speedy recovery
take care
regards