Update:
After taking a shower, I was in my wheelchair drying off my right foot. I was wondering why I only ever had to brush off the bottom of my right foot before putting my sock on--and my left foot never needed to be brushed off (lint, sand, etc.).
Then it hit me! Oh Yeah! The left foot was amputated 4 1/2 years ago. WELL, THAT EXPLAINS A LOT!!! Ha Ha Ha!
It's amazing to me that the mental map of our body stays intact, even after radical changes.