OMG KIM!!!!! I am so sorry to hear of your terrible accident. I pray that you are not in too much pain now. I know how painful sprains can be.
You poor thing. It's bad enough to sprain one foot, but two at the same time. Big time OUCHIES!!!! Then too fall off your rolling chair, more ouchies.
I'm happy to hear that the hubby was around to help you and make it possible for you to stay in bed. Please be careful and take care and more important, keep those feet up to allow the swelling to go down.

Gentle {{{{{{{HUGS}}}}}}} to you dear friend.