my 2 year grandson was in a car accident a week ago and obtained a cut in his right eyelid no bruising, the next morning we noticed a nose bleed but it stopped and there has been no more. he has acted fine and plays like normal tonight at bedtime, over a week later, he fell in his room playing and hit his head continued playing then close to bedtime he has vomited twice but is now sleeping. should I be concerned he might need a ct scan, could this still be from the wreck