CONTINUALLY HAVE CRAMPS IN MY CALVES [24/7] & IS WORSE

CONTINUALLY HAVE CRAMPS IN MY CALVES [24/7] & IS WORSE WITH EXERCISE RECENTLY MY LEFT LEG IS STARTING TO GO NUMB & TINGLY AT TIMES, ALSO HAVE PAIN WHICH STARTED JUST BELOW THE KNEE & NOW IS AROUND THE SIDE OF KNEE. HAVE HAD ALL THE BLOOD TEST FOR MINERAL; IRON ETC
I DO HAVE SLIGHT LUMBER SCHOLOSIS DIAGNOSED WHEN I WAS 14-15 YRS OLD