|: OK, maybe us women have a funny wiring? ;-D
Nope. I also made the same experience. A hard landing on my lower back resulted in a stiff neck and a big headache.
: I already have my crash pads/diapers hahahaha! Maybe I need gel inserts lol?
What you need is thick high-density rubber foam. The same kind that is used in your knee pads. Not the stuff that is used for easy chairs or mattresses.