Losing Motivation

5.14 miles total. I slept late so put off my run until this evening. I ran 1.04 miles with the dogs around the neighborhood and then 4.1 miles on the treadmill. The training scheduled called for 6 easy miles, but at 9 p.m., I was tired of my shins hurting and just not into it so stopped. Losing motivation to keep up this higher-than-I'm-used-to mileage.