question: Greetings, A week ago I sustained a rib injury to the left of my ribcage due to training (karate; kick to the ribs). I went to the E.R. and got X-rays/CT scan, they informed me I did not break a rib but suffered damaged cartilage that can take up to 3 weeks to heal. I have recently noticed an irregularity with my abdominal as the upper left muscle of my six pack (where I sustained the injury) seems indented and slightly numb. Best way to describe it would be to say someone literally punched in one of my abdominals. I understand i am only a week in on my recovery, but is this common for this kind of injury and will it go away?