I had really bad leg cramps before figuring out I had a candida issue. It was like very muscle was having a charlie horse. I do not know if it was candida related. At the time many other things were happening to me such as lose of feeling, swelling, and joint pain. My advice would go see a doctor to see if your are deficient in a certain vitamins. I found out I was deficient with b12 and iron. Adding this helped a little but even after the deficiency were fixed I was still having problems. I still have muscle cramps now, but it is very rare (usually muscle twitching and not muscle cramping). I am very sorry that you are experience this :(. I have been there and I know how painful it can be. You are in my thoughts and prayers.
Lots of love to you,