Falling 20+ feet and landing on my back was pretty excruciating for about 2-3 weeks, there was no position I could sit/stand/lay down without pain. Burning my forearm on an industrial oven was probably more painful short term, but didn't last as long or affect my everyday activities as much.
Stingray. Big one. Right foot. 2nd worst was compound fractures left tibia/fibia.
Breaking my Wrist
I once was paralyzed from the neck down due to tonsilitis of all things - the swollen tonsil compressed a nerve. If I tried to move so much as a finger it was excruciating.
Childbirth with back labor. It was the worst!
Broken Ankle in 3 places and also dislocated<br />
Plus ruptured ACL in left knee
I was hit by a big rig truck while on my bike
Probably gas pain. :(
Childbirth with back labor, what a combo