All morning I've been having these spasm type feelings all the way up in my diaphragm. I'm only 22 weeks, so I'm pretty sure the baby isn't that high up yet (he usually hangs out behind my belly button) and they last a few seconds then stop, then a few minutes later it happens again. They're distinctly on my left side, too.

Has anyone experience anything like this? Or does anyone know what it is? The sensation kind of takes my breath away!