DUH

No wonder I tend to have some of my best running days when I'm on my period. I won't run unless I'm pumped so full of painkillers that I wouldn't feel a gunshot wound. Of course I run better when I feel no pain. My knee is suddenly perfect, my muscles will never ache, I'll never get a stitch in my side. DUH.

(Of course, I have some of my worst days during that time, too. If the painkillers ever falter, I'm toast.)