This is so painful, and I sure do empathize with you.
I've had a rib cracked twice and then cracked one myself from coughing so forcefully during a nasty case of bronchitis. You can't make a single move without feeling it. Just a little bitty tip that may help..if you need to cough, try holding a pillow and bracing against it. One of the unfortunate things about a cracked rib is, short of wrapping your rib cage, your Dr. really can't do anything about it , so you have to just wait it out and deal with it. Sure hope it's better very soon!