Constant Numbness and Pain in Left Leg - Seeking Relief

Am I alone with this... Numbness from butt to heal down back left leg. Have ACTUALLY lit my foot on fire showing I can't feel things. Although numb, I get these hot spots on leg, usually on calf, that itch like crazy. Of course I end up with a huge bruise, but it's SO intense. I also experience a constant cramp in left calf. Only thing that helps is Lorazepam. I've always had RLS, pain, and muscle cramps, but this left calf issue has been consistently tight for a few years now. Anyone else?? What gives relief?? I HAVE seen a neurological specialist, so it's real. U know, when "we" get told it's in our head🙄🤷🏻‍♀️💣