Hello. I had a terrible coughing cold and ended up with walking pneumonia about two months ago. I have been coughing hard on and off about five or ten times a day to bring up phlegm since then, but not sick. I d developed a dire area on my rib about four days ago, but it was mild. Yesterday, I coughed hard and heard/ felt a pop and snap in this exact spot. I felt instant terrible pain. And now if I cough, I about pass out with pain. If I sit still, there is just a mild ache. Certain movements and bearing down to go to the bathroom also make it hurt terribly. I m worried because now I m not able to bring up the phlegm. Should I go to the ER, or wait to see my Doc on Monday.