I have a back injury that happened 34 years ago. However, lately I have been having cramps in my neck near the cartoid artery and neck pain and stiffness. Also I have developed very much fatigue, weakness in the legs, pain across behind my ribs (my back injury was or is low back), super hyperhidrosis from my head, itching all over, and cramps in my feet and calves. I have been tested for thyroid problems and everything is okay with my blood. Any ideas? This is very debilitating!