Hmm - having been subjected to loads of pains through my life so far - I'd think .... the worst (physical

) would be the time some 6 years ago when I drove into a car on my bike with about 40-45 km/h and hit my head in the window and flew some distance and then hit ground.
(To my defence, the car was parked illegally on the area for bikes on a dark road at the bottom of a good distance hill)
However that alone wasn't the worst pain, it was when I got to the emergency room and they needed to clean my forehead with a nailbrush to get residue of asphalt cleaned out.
That hurt like I don't know what else, and when they were done spatter's of blood where up and down the walls (glad I shouldn't clean that up).
God that was painfull......
Hmm - another might be the time a car accidently opened its door into my side when biking past it, so I got slung into the middle of the road and hit by a rather large truck. Then as I was to be brought to the emergency room in the ambulance, I was positioned on the stretcher in a rather painfull position, which I couldn't move out of until I had been x-rayed. That was also rather painfull.
Or all the other times I've gotten injuered.... remarkably I've never actually broken any limbs. I only have huge scar on my shin from the truck (second time) and a still visible one on my forehead (carwindow/asphalt first time) - but I never broken anything

(yet)