I've had something like this happen to me, albeit less serious: I was snowboarding, went over a jump poorly, and found myself totally disoriented as I careened through the air. Every single other the I'd found myself flying through the air flashed through my head at unbelievable speed, in an attempt to search for some past experience to leverage wtf I should do. Ultimately I found nothing, made peace with the fact that I was going to slam into the ground, and promptly did so.