Cracking/popping of my sternum/ribs ever since it popped/cracked a week ago. Should I be worried?

Rib pain. Need to know what happen to your sternum; what evaluation was done (exam, x rays etc); what medication were given etc.; what is your medical history. Ribs fractures are notorious for having lots of pain (maily sharp) which is frustrating. Fracture could take 6 weeks to heal. However, the best way to help is to see your doctor and make sure recovery is going well and nothing new develops.