Back pain got you down get up and move. Sitting still or lying down will cause your muscles to stiffen and tighten up. Although you shouldn't twist or turn try doing some safe exercises at least 15 minutes a day; consult your doctor to see what exercisers are safe for you and your back.
Both very active occupations and also jobs in which there is minimal movement can be detrimental to your back. Constantly lifting, pushing and maneuvering in odd ways can really hurt your back and you should always pay attention to your movements. Also, not moving often enough can also cause a lot of back pain if you do not take the proper precautions.