I've never broken any bones or anything like that, but the worst physical pain I've ever felt would be the time I fell about 15 feet off a tree and landed on my ass.
Not only do you feel the main mentally but also physically. You feel like someone ripped out a whole in your chest, you get light headed... When you start crying and you need to gasp for air. You feel numb all over
When I was younger, I was riding this bike that was way to big for me and I stepped on the break too hard and went flying like, 10 feet. It hurt so day