My daughter is 13 years old. For years she has complained, to the point of tears of leg aches. She is tall and growing fast so I just assumed it was growing pains, but after the years past and it seemed to worsen I took her to the doctor he told me that growing pains occur in the bones her pain is in her calf muscles even sometimes in her upper arms. The pain is intense aching not a cramp. It happens almost every night and even in the day. It is worse when she has been doing alot of walking or when she gets tired. We have tried a banana a day, it did not help. The doctor suggest potassium and if that does not work he will take blood. Any suggestions would be greatly appreciated. Thank you!