I have severe charlie horse in my feet and legs. I have beed to several doctors, blood tests were rean and I continue to expoerience this pain three times during slee, it is so bad it awakens me. I have not slep throught the night in a year due to this cramping. My toes turn under and I have to use my hands to straighten them out. My doctor told me to take CoQ10 and low dose magnesuim. I drink almost two gallons of water per day and tonic water does not help either. What can I do?