Of energy, of will, of belief . . . you name it, and it's been drained from me. I thought these last two weeks before the marathon would be a breeze. Instead, I've either bailed on or walked through several runs, having felt like my body was revolting against me, unwilling to push forward in the most defiant manner. This makes me concerned. If I can't get through five miles, how will I get through twenty-six? I began thinking that it might not happen--I might have to pull out of the race. I imagined myself getting all the way to Chicago, standing in line among thousands of runners on race morning, only to find that my body would quit on me a couple of miles in. What then? Would I duck out in shame, try to continue on, walking? This isn't a walking race. Everyone would be disappointed. I've made a huge deal about it. For months. I made sure everyone I cared about knew I was doing this. And they'd be expecting great things of me--great things I wouldn't be abl...