Most back pains are due to muscular causes (muscle spasms). Maintaining odd position during work will lead to spasm and severe pain
The rest are due to degenerative disc disease
). Dangerous conditions like cancer or infection are the other rare possibilities.
Try the following. 1. Sleep on a hard surface 2. Avoid lifting weight 3. Take warm compresses
If your pain doesnt get relieved after a couple of days or if you have fever
, difficulty in walking, wekaness then visit a orthopedician