My kid is 6 yrs old. For past two months she is practising archery in Saturday and Sundays . Each week on Wednesday she is telling chest pain . But active . Last ten days she do practice every day. Yesterday she is telling pain over heart area and left side chest pain. Is this muscle pain or heart realted . Before the archery training also she told same but in between sternum areas . At that time she has episode of gastritis .whether in archery chest muscle involved . Pls guide