thanks for posting your complain to healthcaremagic, dear friend, your low back pain is of muscular type.if all reports are normal then no need to worry.physiotherapy and exercise will help you a lot on long term basis. presently if you have severe pain then take muscle relaxant medicine like combination of aceclofenac+paracetamol+chlorzoxazon and consult physiotherapist. -exercise for low back pain- raise your leg sraight from hip joint without bending from knee after sleeping on back and then put down slowly. same exercise for another leg and then raise both leg simultaneously. sleep on abdomen and raise your head and chest backward. do all these exercise 40-50 times per day by increasing slowly everyday. hope this answer will be helpful to you. for more queries plz don t hassitate to ask. get well soon dear friend dr.manu khimani