<s>[INST] My brother have pain in whole back with little bit pain in legs also he has heavy pain in left side as compare to right side.he is can t able to sit and lying.. What is the problem and how to diagnosis.the x-ray report is showing back is in good condition [/INST] HelloYour brother need proper clinical evaluation and investigations.Pain may be due to many reasons like visceral pathology,disc prolapse,arthritis,hypocalcemia etc.Investigations include routine hemogram,random blood sugar,liver function test,renal function test,urine RE/ME,serum calcium level,MRI L/S spine.MRI can exclude disc prolapse which may the reason for pain.He also need proper evaluation for arthritis.Proper treatment depend upon findings.Take CareDr.Indu Bhushan </s>