I get so frightened at the speed in which nerve cramp travels from top of big toe into ankle up the shin and if I can't stop it somehow it feels I'm going to die from rigamortis as its gone into my inner thigh this time to trunk of body. The only thing to help me is if I can get to shower hose the leg it seems to relax the nerves and to drink water but its not immediate. And I'm left with twitching, flickering in legs as if they want to take hold again if I tense in any way. Could this get better if I agree to having a multi level fusion L4/5 S1/2? My surgeon has previously put a wallis implant in L4/5 but I have too much degeneration and that's what I've been told I need. But I'm frightened I could lose my independence and mobility I do have. I'd appreciate comments on what others have done. Thanks.