Relish your mere sprained ankle..
A friend was coming down a flight of steps at work, one we were so used-to that no one ever noticed them anymore. Maybe he was glancing at some papers...
He thought he had reached ground floor, but he was one step shy (amazing *stuff happens when brain thinks: OK, it is Flat Now). The jar on "landing one stair off the ground" screwed up his spine, apparently permanently.. always twinges and such.
We are an unimaginable mixture of bullet-proof and glass-fragile (like Doze). ie Lucky You!
Cheers,
moi
* few ever even vaguely notice the complexity of mere 'walking' - we are always in a "controlled fall-forward", making gyroscopic calcs referenced to our perceived CG, the traction we think we have and a passel of other corrections. These matters were once pointed out to me by a 'kinesiologist' and I try not to forget them, especially when groping in the dark.. Gravity is a nasty-OT-style bearded Lurker, kinda like a late-night preacher. (It helps to model The Enemy ;-)