Man oh man ! you really did a number on that one. The roof panel looks like you did a dance on it!
well, at least your all right and still have your sense of humor. You must of popped a bead. Don't forget we don't rebound from those hits like we used to. You mentioned a sore neck, try using a neck collar. They can be had at most any cycle suppy that carries motocross stuff. That helmet is heavy and getting slung around like that really snaps the neck around. The collar supports the helmet and takes the stress off your neck. You would be surprised at how much less fatigued you feel after a ride from not using back and neck muscles to hold your head up.