Of the pain is at the back region only it cant said to be sciatica. But if its travelling down the back of the thigh and down the calf and toes, its referred as sciatica.if the back pain increases in the morning, it can be a postural pain which generally occurs in case of long standing /travelling /sitting/computer or table work .
Next Steps
Go to a physiotherapist.. Ultrasonic therapy +IFT +Heating therapy +some strengthening exercises will be helpful for sure.
Health Tips
At home.. Rest+hot water fomentation +pain killer gel +no long sitting/standing /walking /travelling +no stair climbing +correct posture +sit tall +no cold exposure