I have had persistent nerve pain in my left leg, running from my lower back, into buttocks, hip, thigh, calf, foot and toes. the symptoms include numbness( big toe and toe next to the big toe are persistently numb on the surface of each toe that is facing the other toe. I have had knots in my left buttock on and off. I have pain which includes pins and needles, ants crawling, swelling in lower back, weakness in whole left leg. Left foot and calf stiffing to where it is hard to walk after a few minutes, left hip and buttock muscle wasting( smaller than right),etc…..