Yup. Doing speedwork. Going along at a perky pace, put the hammer down some more, got a sharp pain deep in my mid-right-cheek that caused a simultaneous yelp and mid-stride stop, and a discouraged slow limp home.
Been on the Internet. Blinding flash of the obvious: Gluteal strain. Internet wisdom reveals that it's commonly suffered upon a sudden increase in speed or stride for which the body is not prepared.
So today I'm stiff. And limping. My butt cheek hurts. My hamstring is tight. I'm frustrated.... will I be able to pick up my 16-week-marathon-training program (which was officially to start with a 10-miler today) in time for an April 15 marathon?
Maybe I better go down a rung to a 12-week program.
Don't forget to read my previous post, in which I ask for opinions on reading/study material....