My daughter, now 18 and starting college in a couple weeks, was injured in a basketball game 4 years ago. She collided with a bigger player and landed on the floor hard on her back.
She couldn't move and lay there in the middle of the court in considerable pain for 15 minutes until the ambulance arrived. All turned out okay, but dang that was scary when it happened. All sorts of things are running through your mind. Queasy, indeed.