I don't know. About two hours after the accident I felt a pretty bad pain in my neck. I slept over it and now it's gone.
Don't know if I should go to the doctor.
GO TO THE DOCTOR! I got rear ended with the other driver only doing 10 mph and compressed a disk in my kneck. I had on my seatbelt and saw the accident coming.
Don't play with it and have issues years down the line when you can't get it paid for on their dime or make them pay for it..