Have you ever had side stitches severe enough to stop you dead in your tracks? Ouch, they can really be excruciating and interfere with your performance.
Here’s a great article with tips about how to prevent side stitches and handle them midrun.
https://www.runnersworld.com/health-injuries/a20838539/how-to-beat-side-stitches/
Article by Jenny Hadfield for Runner’s World