Why do you sometimes catch a stitch when you progress for a run and how can you stop it?

Why do you sometimes catch a stitch when you progress for a run and how can you stop it?
I don't know how to stop it after it happens... but to prevent it... I hear that pickle juice help... something about the vinager, or something... any that or drink a lot more hose down.
if you been drinking b4 hands its trapped interweave