Huh. I've usually heard of that after a spin class, but not running! I'd suspect your form, if I had to guess anything, but unfortunately I'm not really qualified to guess beyond that.
Writer, mother, wife, and breadwinner. I love to run, but running doesn't love me, so I'm switching to my low-impact bike.
I'm not pregnant, just fat: My blog. fatnotpregnant.blogspot.com/
| current weight: 186.4