Last couple of nights I ve been having very painful cramps just above the ankles (both). They last about 10-15 minutes despite massaging, thumping, loading, etc. The cramps pulls my big toe up, and pushing down on them helps momentarily but I can t get relaxed. Had surgery for bilateral hammertoes when 17 (I am 87 now). Had these bouts before, always cramps below the knee. Any suggestions as to diet? Potassium? Magnesium? The cramping occurs several hours after I go to bed. Thanx.