My son is 14 1/2 months old and he keeps falling and hiting his head. He currently has 2 bruises on his forhead, one on each side. His doctor is not very concerned with this, but he does not see how much he hits his head. I know that he is suppose to fall some, but he has been walking since he was 9 months old. The worst was last Wed we had just gotten out of the, and he fell on concrete hit his head then 2 min. later vomited, then a hour later vomited again. His left eye got very red, and that was right above where he hit. I am just worried about head injury. He is okay, but I was very worried. So I've decided to get a helmet, is this insane?