<s>[INST] i am 36 yrs old, height 5'2",weight -42 kgwhen i stand half an hour continously there is a pain in my lower back . i have taken pysio treatment and aqu pressure treatment ,but all in vain.i am not able to sit or stand ,bend after half an hour standing firsty pain occurs in lower back then go to legs and then in  feet.then my feet becomes senseless .my x-rays are also ok wha should i do? [/INST] Hi Welcome to health care magic. primary treatment of chronic backache is exercises.One should  VIT D3 level checked, and supplement it. Even if VITD is normal then MRI LUMBAR SPINE IS TO be done to see compressive nueropathy. I think this advise of mine will be of some help. </s>