What an interesting story. You could say it's a real “miracle” that you survived that fall.... The closest thing I have is that I wasn't walking yet, and I was walking around my grandmother's house in one of her wheeled walkers. One day, when she was distracted for a while, I went to the end of the corridor that led to the backyard, and went down the stairs sitting on the walker. At the bottom of the stairs there were two stones high up. They were about half a meter apart. My head was between them, after the walker turned when it reached the end of the flight of stairs. If the stones had been closer together, we wouldn't be talking here today.
But that wasn't the magnitude of your experience, obviously!
Thanks for the interesting sharing, friend!