DS is 18 months old, he throws big tantrums at least 5 times a day, but when he does he head butts the floor? It's usually on the carpet/rugs couple of times on the tile floor, today for the first time it was outside on the pavement i try my best to pick him up before but it's difficult and i don't know how to stop it, he hjas a big bruise and lump on his forehead and i don't know what i can do i'm terrified his going to cause damage to his head, any advice/help?