Jerk induced back pain is a common cause of impaired participation in daily activities these days.
Go with alternate application of ice and hot pack if it has been long since the occurrence of pain.
Avoid forward bending, sitting without support and perform any activity that requires the body to be maintained for prolong period of time.
It is best to take rest, do proper icing+heating, consult a proper physiotherapist
Next Steps
Consult online/offline
Health Tips
AVOID Forward BENDING! Also there are lumbar supports available which can be used as a back support while sitting on a chair and even while traveling