Muscles become spasmodic and painful due to overuse due to traveling. Consult a physiotherapist.
Next Steps
Go to a physiotherapist.. Ultrasonic therapy +IFT +Heating therapy +some strengthening as well as stretching exercises will be helpful for sure.
Health Tips
At home.. Rest +hot water fomentation and apply some painkiller gel.. No prolonged standing /walking /stair climbing /travelling /driving /sitting +No forward bending +no weight lifting +no manual exertions +no jerks +no cold exposure+correct posture (sit tall) .