I have suffered from chest injury 4 months ago.While I don't have any broken ribs visible on x ray, I think I might have bruised it and damaged some soft tissue on top of it.While bruise has almost faded in one month, and pain subsided but the area is still tender so I face sometimes issue if I sleep that side or if I stretch my chest upwards to increase blood flow, my back side and other parts started aching.So, I should give rest for few more months to start extensive excercise.Orthopaedic doctor said muscle will take longer to heal.My chest has 2mm wide and 3 inch long tight spot on top of ribs and that tight spot is causing pain if I stretch and that tight spot is tender and my chest is sore till 4 inches.I have not done CT scan or MRI as x ray is normal and even any issue comes in MRI , doctor will say take rest only.Also pain during injury was also minor only so I don't think if it was big injury.