So last night around 4:45 am, I randomly had a pretty intense spell of rib pain. It didn't feel like Oliver was kicking me in the ribs, (I don't think? I've never actually felt him kick that high) it was more like a burning sensation, I guess is the best way I can describe it. It was across my rib cage under my breasts, and slightly in my back in the same spot. It lasted maybe an hour, and started out just slightly uncomfortable but sort of progressively got worse until it stopped. By the end it was so uncomfortable it caused me to get sick twice. I've only had this happen one other time, but it wasn't near as bad. Any idea what could cause this, or have any of you had this?