Side Stitches and Cramps


Side stitches are one of running's great mysteries.  They affect many people differently, and many not at all.  Kind of like hiccups.  Here's a few good articles on them, which include some remedies.  Personally, I'll take a few strides (10-15 seconds worth) with my arms raised over my head to help "stretch" the muscles and areas in the abdomen.  Overall, it's an effect of breathing and the internal organs/muscles/ligaments and them cramping up.

You'll have to experiment as to what works best.