Don, Yes, it is a good idea to have it checked. I broke a vertebrae one time and did not know it, except for some back pain. Found out later, after it healed. I was lucky. The back of the head is very delicate. Roller skated recently on ship, and I fell once. Gave me some sore ribs. They made everyone wear protective equipment, and there were no walls. When I fell, I heard my helmet hit the floor. Thank goodness I had it. I'm 72.