Oneday,Iwasinclass,feelingfine,whenallofasuddenmyhea...
问题详情： Oneday,Iwasinclass,feelingfine,whenallofasuddenmyheartstartedracing.Ibrokeoutinasweat,feelinghotandcoldallover.Mychesthurt,Iwasdizzy,andIfeltlikeIcouldn’tbreathe.Everythingwentblurryaro...