Monday and Wednesday I ran the same 5.8 mile route, at about the same speed. The route, our on-street winter loop, has more hills than the paths we take in summer. Still, I felt fine after Monday’s run and went into Wednesday’s brimming with confidence. Wouldn’t you know it? My knee hurt after the run, a low-level tightness that lingered through most of Thursday. Bleah. Looks like I won’t be increasing my mileage this week.