foot. and i've had a lot of reconstructive surgeries over my years that have limited motion in my feet and ankles. >> have i herb's palsy. my left arm was paralyzed at birth. now have i some mobility back. >> hopefully now we all understand it's stressful to be an elite athlete. but some athletes have a level of stress that other athletes can't even imagine. >> for paralympics, you have to classify with doctors. >> i've heard about that a little bit. is it as annoying and -- what's the word i'm look for, shitty as it sounds? >> it a lot of extra stress to not only are you worrying about how you're going to be performing, but people are going to have to poke and prod at you, and they almost make it feel like you don't belong there. >> we're supposed to be at our peak level of fitness, peak level of capability and confidence. and then a couple of days before we go, they say okay, show us everything that you can't do. i've been really trying to put that off. >> trying to put can't out of my mind. in sports, your mind-set is