How is the shoulder? I am also retired Navy btw, I dropped my bike on the wet pavement in September and the result of the impact with the asphault was identical to yours with the exception of being unconscious. I do remember sliding about 10 feet on my head. The bike shop guy just exchanged the helmet free of charge. My shoulder is still bad and I have to eventually get an mri. The ortho said it was most likely a torn rotator cuff of course and probably would need surgery. It hurts only after an hour or so of riding so I have been putting it off.