hello doctor, my kid, he is just 3years old now, suddenly he is crying for knee pain, somtimes in the mid night also. yesterday he cried for knee pain for both the legs, he is very hyper active kid. he always used to jump and do stunts with walls and shelves. when he said that knee pains i used to do massage with coconut oil for pain relief, after massaging he is getting fine for sometime can u please suggest me why he is getting knee pain and how to protect him frm the pain.