Thanks for the replies. Sorry, I should have shared the whole story.
The other guy, thankfully, came off better and I suspect had lesson momentum. He grazed one of his hands quite badly, but was taken home by family. Appears the bikes clashed frame to frame, and we both continued onwards. I am glad, of course, the frame absorbed a significant amount of my momentum.
The kind GP who stopped at the scene, and called the ambulance, said I was stunned (hit my face, was wearing a helmet but not tight enough and even then jaw is not protected), and so I had to go to A&E and get asked the questions. I was OK, so soon came home. Just got a maybe a little concussion, but not enough to forget anything, and a few scratches, bruises, neck ache and had a mild headache yesterday. I was allowed to work from home today.
Yeah, if anyone would pay for postage they can have the frame, possibly life in the fork.
I think I may stop using this stretch of cycle path and simply cycle on the road from now on.
Oh, to cycle commute in Holland
Grass is always greener!