my son (16) has a concussion...did not hit his head but jumped off a wall that was about 10 foot high, jarred his neck and obviously hurt his brain, was vomiting on Friday but that has stopped, his temperature is 74, face is red and hot, had a CT scan on friday, and 2 other x rays...he has vision and balance issues as of Friday...lays around,,,complains his brain is heavy on one side.