If it is a long time to breathe back pain may be lumbar spine curvature is too large, resulting in excessive force in the back part of the waist and lead to chronic injury, which is a unique human disease, is one of the costs of human evolution. There are many reasons for lumbar pain, kidney deficiency and kidney stones, lumbar disc herniation, lumbar muscle strain are possible, it is recommended to go to the hospital for lumbar spine examination. Usually to correct the bad posture, you can walk backwards to change the center of gravity to adjust the posture, you can also go to the Chinese medicine hospital with acupuncture, tuina, physiotherapy treatment. You can also take ibuprofen, non-steroidal drugs to relieve pain.