I am getting sever cramps in my 2 small toes on my left leg (& always only the same toes). It happens when I am out hiking and the pain goes up the outside of my leg but not above the knee. The pain is sometimes unbearable. There is no set pattern i.e. it doesnt happen every time. Today it didnt go away for a few hours after I took off my boots. It is not the boots as it has happened in my trainers. I am due to go to climb Grand Paradiso next week and am very down in case this happens when I am out and it would be very difficult to return. What could be the cause of this and could it be a deficiency or a lack of some sort.
I look forward to your response.

Pat McCabe