Iam having lower back pain ,not at particular point..always hvng stable pain since 15 days..while sitting and sleeping only its paining.please suggest?

Low back pain: Low back pain can be multofactorial. Describe exactly what were you doing when u atarted getting the pain. Was it sudden in onset? How bad is it- On a scale of 1-10.? Id it sharp? Does it run down either of your legs or does it radiate anywhere else? Any numbness in the legs? Any problems urinating? What makes it worse and what makes it better?

Back pain: Low back pain is common and often due to strain. If the discomfort is affected by bending and twisting, it points to a muscular origin. Steady pain radiating into the buttock or leg may be due to a disc bulging or herniation. Rest,warm or cold packs,rubbing liniment,NSAIDS like ibuprofen and muscle relaxants should help. See an orthopedic surgeon if symptoms persist. Arthritis is less likely.

Many Possibilities: Depending on how long it's been going on, i would consider an evaluation by a pain/spine specialist. Sometimes it could be a muscle imbalance, early onset arthritis or scoliosis. Also could be a pinched nerve/herniated disc. Either way it might be good to figure it out and get appropriate treatment.