No Trampoline , certainly not in a child of this age .However I am sure you have told your self the same many times , I agree it could be
growing pains as the bones and tissues grow ,and that leg having been injured would be be more sensitive ., and growing pains do hurt more when the child is resting or after exercise .All you can do is wait to have further tests done to get some answers, did they tell you to give her any med to help the pain?