Hi, Welcome to Healthcaremagic.com. I had gone through your question I can understand your concern about your trauma. As per your history or symptoms it can be either the intercoastal muscle tear or a hair line fracture in rib. Both the cases it will heal with time and no intervention is needed because at this time the muscle or bone must have started repairing. In case there is pain while breathing, you must visit a orthopedic surgeon for further evaluation. Hope my answer will help you and visit us back if you have any further assistance needed. Regards Dr Muzaffar Hussain Parray.