IAM HAVING PAIN IN MY LOWER BACK  I FELLED DOWN THREE MONTHS AGO AND I HURT MY KNEE  I DID NOT SEE ANY SIGNS THAH IT MAY HAVE BEEN BROKEN BUT  IT DID HURT FOR  QUITE AWHILE NOW I AM FELLING AN ACHIHG SENSATION DOWN MY THIGH TO MY KNEE ALONG WITH THE BACK PAIN DO YOU THINK THIS MAY BE COMING FRO THE KNEE
Hello! Thank you for asking on Chat Doctor! I understand your concern and would like to explain that your symptoms articular pain, irradiating by a possible disc displacement in your lumbar spine. A knee injury, involving the nerves would not cause pain in the thigh, or even more on your back, but it would cause pain locally or irradiating down the calf.  I recommend consulting with a neurologist for a careful physical examination, a lumbar spine x-ray and a nerve conduction study of the lower limbs.  A lumbar CT scan may be necessary to examine better your lumbar vertebral column. Meanwhile, I would advise you to have some rest and take some painkillers like acetaminophen or ibuprofen. Hope to have been of help! Best wishes!