Race car accident when I was 19 sent me into a coma for 2 weeks. I am extremely fortunate to have staged a 98% recovery. I even went back to racing cars about 4 months later. I initially couldn’t remember the last week before the car crash. Eventually I was able to recall everything up to the beginning of the race.

Fast forward to 2 years ago when I was 60. Took a bike spill and received a concussion with symptoms almost exactly as you describe. I can’t remember the fall at all. I was told the memory might come back and it might not. So far it hasn’t.

YMMV...Your Memory May Vary! I am very diligent about wearing my helmet. Since this bike fall, I have stopped the banzai downhill runs as a safety measure and always ride well within my limits. I’ll still have a bit of a go, but the Tour de France guys def have nothing to worry about.