Low back pain and right leg cramping and pain with paresthesia since March following lifting a box. Tried some exercises but no help. No improve. Has give way feeling in leg right, needing medication for sleep. struggle with walking, bending. Reduced ROM lumbar, no sensory loss, weakness in right leg particularly noted in calf [unable to lift up unilateral]. Slump +ve. Checking for L5/S1 nerve impingement, compression and disc bulge. ? conservative vs neurosurgery.