** Thanks for contacting with your health concern and since we re a diagnosed case of a fractured rib and given symptomwise management, and presently some symptoms have resurfaced, thus I m of the following opinion: i. It could be the old fractured rib not healed properly ii. probably costochondritis. iii. muscle sprain, so If by adopting - hot water fomentation - rest with minimal movements - chest strapping - intercostal nerve block - if by taking an analgesic, anti-inflammatory enzymes, and muscle relaxant, the pain goes away continue with the same, however, if the pain is not relieved to ask for Hb%, WBC, ESR & X-ray Chest 2. Apart from injury, pain could be a pleural pathology. [ask for chest X-ray to exclude pleuritis, pleural effusion] PS. Although most of the times, pain may be the result of minor injury or postural changes, however sometimes there may be an underlying medical condition/situation which needs appropriate treatment.