cramping ,fasciculations, foot and leg weakness

started with leg cramps and fasciculations (24/7), tried K+, Mag. water quinine, CQ-10, nothing worked. had blood tests (metals, auto-immune, gad, kennedys, siffeman-syndrome. liver and kidney function) also did emg and biopsy muscle and nerve all negative. the only elevated level was creatin kinase( associated with muscle wasting).. stopped stantins, coffee and alcohol.  caffine helped cramps, but disease progressing to muscle weakness. started dilantin..seems to decrease the cramping also. where do i go from here?  Check into Mayo? Symptoms started less than a year ago. foot drop and muscle weakness mostly on left side is increasing rapidly. no problem swallowing..BFS is the seemed logical untill foot weakness and balance with falling.cannot tap my toe.and wake up nightly with foot cramps..any suggestions for diagnosis or tests?