I must have got up quickly afterwards as I next remember standing on the pavement, so while I can understand the logic of staying put till help arrives I'm not sure my frame of mind at the time would have helped and I've no real idea what actually happened. With hindsight I perhaps could have let the driver take me all the way to hospital but I was just worried given the pain and spasms going along my spine. Again, not really all 'there' in the immediate aftermath.
On the bicycle issue, a local resident kindly took the bike which the driver had to remind me of as I'd obviously forgotten. I just remember someone taking it and seeing it with it's buckled wheel etc. When my wife and I went to collect it, I realised it had been locked up by my own padlock, which is crazy as it means I'd needed to have given the resident my keys and him returned them to me and I don't remember that at all!
I don't know where my helmet is either!
I didn't even know for sure where it was going to be so fortunately it was just locked outside where I could find it. I had to leave it to my wife to (wo)manhandle it into the boot and neither wheel was turning so she had to carry it all the way.