Hi my 13 month old hit the side of his head on his ear an maybe above his ear too, he cried for bout 30 seconds n then I distracted him and he was okay, he was normal after, it s been about 30 mins and his very very sleepy although it is his bed time, he shows no other symptoms of head injurys, should I take him to a doctor ? And should I wake him every 30 min ? Thanks