Yikes ! I am not sure what "pop out" means, but it doesn't sound good.I managed to pop out two ribs yesterday (Ouch!) Got them taped and feeling much better today. Thank goodness they sell nice first aid tape at the Walgreen's here!
I thought that I may have cracked a rib on a bike crash two months ago. I took two weeks off from riding to give my body a chance to heal. I never developed a fever, so perhaps it was a bruise of some kind.
I hope your ribs heal quickly, Garnet.