I've been diabetic ten years and I only started to experience the symptoms about eighteen months ago it got too bad when I started experiencing a burning pain in my feet like an electric feeling it wasn't nice it took my GP about nine months to find the right medication but I still feel the affects and your right it can move to almost all parts of the body
I don't take any medication for mine, I didn't know there was any!
Just feels like my bones are itchy and I need to move them, I tense my muscles one at a time starting in my feet and then relax them again in the same order. It helps a little bit.
Had a quick google and read that it can be caused by iron deficiency (anemia). I had this due to undiagnosed coeliac disease and now wonder if restoring iron levels has helped. Just a thought.