Wow, what a story. So sorry to hear that you're dealing with a bone fracture along with MS! I understand a bit, because I broke a toe last winter due to my own MS clumsiness (and it wasn't the first time

). I was worried that it was my whole foot like yours, but it turned out to only be the toe, which meant no cast. But...broken bones are painful no matter where they are. The pain remained for weeks and the swelling stayed even longer.
I hope you figure out good ways to stay mobile. Sending you healing and pain-free wishes this morning!