Dear , don't worry
Actually because of blunt trauma u would have got muscle injury ,muscular spasm so need to take bed rest for one day.
No weight lifting ,no forward bending .
Actually if pain is not getting tolerate u need to take muscle relaxants so for that u need to consult doctor ,
For time being u take rest , tablet dolo 650 for a one time after food, consult doctor for further treatment
Next Steps
consult me or any general physician
Health Tips
avoid forward bending , no weight lifting , complete bed rest for two days , hot fomentation with warm water inside hot water bag in back and waist reason