Yup, I definitely cracked some ribs on Sunday. I've broken one before (in almost the exact same location) when my left elbow hit my ribcage during a 60mph dismount on I-285, so I know what a broken rib feels like. This isn't quite as sharp, but there's still a fairly sharp pain associated with taking deep breaths, coughing, stretching.
No, I haven't had it X-rayed. Like I said, this isn't my first busted rib rodeo; I'm not forking over the co-payment to hear the doc say "Yup, you've got a broken rib. Take some aspirin. Have a nice day."