I set out several weeks ago to train for a marathon , knowing there might be a chance I'd have to change my end goal to a half marathon. And so that has happened. Maybe my training plan was too ambitious for where I was in my body, having spent the better part of a year not running and generally trying to avoid being on my feet, or rather my foot, and then slowly coming back to running over the course of four months. I started with a two-mile test run one week, then three miles, gradually adding on a couple more low-mile run days per week. So to expect to go from that careful, measured reentry to a full-on marathon training was perhaps unrealistic, though hopeful. And that I was hopeful is okay; for a time when I wasn't running, I was not hopeful and had forgotten that it was okay to have hope. But back to my current reality. When I did my farthest long run since April 2015 , 12 miles, my body did not support it. Both feet hurt, my hips hurt. And not just in the typical pav...