<s>[INST] Ihave a 53 yr old son-in-law. My daughter and him went to N.C. Up on Upon arrival him got out of the car he streched and heard a loud pop in his back area. they came back home he has been in unbelievable pain. The doctors have done C-scan, mris 16 b[ood tests. The only thing they have found is he has an inflamed disc a knot on his spine. No antibiotics have touched the infection. No pain killer works. he has lossed 50 lbs. The doctors have said MS Autoimmune and some other things but they can t seem to find it. they now say his pain is not connected to his back. Any ideas? [/INST] Dear patient Your symptoms indicate muscular origin of pain. MRI is very sensitive and specific for diagnosis of spine pathology. If its normal most of the spine pathology can be ruled out. Ct scan rules out bony pathology. Both tests are already done for you, and they are normal. So You need not worry. Which painkillers you are taking? Take proper rest with medications. Sometimes detailed clinical Examination is very helpful. I would advise taking second opinion from other doctor because you should be alright now. </s>