The various causes of
foot cramps or tightening or painful contraction in the middle of
foot are an over exerted
foot poor foot circulation, lack of potassium, dehydration, pinched nerves due to electrical impulse from brain not reaching the muscles, alcohol or tobacco use, nutritional deficiency, etc. sciatica has been the previous culprit causing pain in back and thigh and leg cramps. This could be pinched nerve in the leg or foot.