<s>[INST] I have muscular spasm lower back, on medication for pain relief. Cannot stand straight even if try hard, get tired in my legs and buttocks after just a few seconds. Doctor says this will take two weeks to heal, no X-rays taken, I am asked to stretch exercises, while the doc in ER asked for rest! Confused and worried! [/INST] Dear Sir/ Madam Back pain is to be worried and investigated, if there is any urinary or bowel disturbances, or weakness of lower limbs, or sensory disturbances in the lower limbs or even after giving 3 weeks of rest or back pain is not subsiding. It is recommended to do back strengthening exercises as tolerated. Rest if pain is severe. It is recommended and physiotherapy to be started as tolerated.  Regards </s>