Well, today, my mother was at the park with my little siblings, and she was sitting on the bench watching the kids, when suddenly a huge metal pole fell off of the fence and hit her in the head. She said when she first got hit she felt very dizzy and lightheaded, but after a minute or so she pulled herself back together and felt fine again. Now, she's been home for about an hour or so, and she's saying her entire head is starting to feel numb or like it's swelling. Should she be worried about a concussion? What should she do at this point? Quick help would be greatly appreciated. Thanks.