<s>[INST] Hi. My 5 year old daughter is complaining of a pain in her heart. She was laying down when she first said it. She does have a mild cold and stuffy nose that started yesterday but, that s it. She is generally a healthy kid. My concern of the moment...how fast should a 5 yo heart beat? I felt her heart and it s beating pretty fast. I just don t know what normal is. She is not overweight....she is only in the 25th percentile for her age group. [/INST] heart rate at this age should be less than 100 per min. chest tightness may occur in children with cold usually in children which are allergic. thus will improve with treatment of cold. </s>