My back and knees bother me, although they have both been much better since I have been sleeping on the floor. I broke my finger once, and that was a pain in the butt. And now my leg has been sore all day, and I have no idea why, and it really decreased how much cleaning I did today. But no major injuries.

Oh, and I was the same way with carrying stuff in school. They gave us lockers, but then they didn't give us enough time in between classes to actually go to the lockers, so you had to carry every textbook you owned.... Well, I think some people were probably lucky and had lockers right outside one of their classes, but I never had time to go to my locker, so I never used it at all.

That sounds really impractical... I wonder if current students mostly have digital textbooks and don't have to worry about the weight?

I've mostly been fortunate, injury-wise, but sometimes health-things have laid me up. I think you already got the story about the reaction to anaesthetic? That just wiped me out, but it wasn't from something like pain, it was from the painkiller drug's too-strong-for-me effect. Or the surgeries from when I was younger; same thing. Laid me out, but more from the chemicals than anything directly physical.
Only thing like that, otherwise, is when I sometimes accidentally get meat products, and the cramps, later, will leave me in bed for most of a day.
Nothing like your back, since I have some control over it (don't eat meat!) and it sounds like your back is far more terrifying, just randomly giving way like that on you.

I've got EDS so I am often laid up from some problem or another.

One time I got stuck on the toilet. That was awful and embarrassing. The ambulance had to come and get me. Thankfully they got me some drugs to help with the pain. Though it didn't get rid of the pain completely.