Thanks for sharing a sobering story, and I hope you heal quickly. I've heard this kind of story before, too- just riding along, and you wake up by the side of the road wondering what happened. Scary.

A previous poster is correct, though- if you have a concussion, stay off the screen for a while. My wife had a concussion from an accident a few years ago, and didn't get this advise soon enough- using a computer caused headaches,etc., and delayed her recovery.