My 6 year old grandaughter hit her head when she fell on her bike.  We put ice on it for about 15 minutes.  She was fine and went out to play again.  A little while later she came back in and is sick to her stomach.  I know it is a possible concussion - should we let her sleep?
She was not fainting, she just has thrilled, that's why give to her light food, like milk or soup and put for rest