This is hard to explain, but here goes. Randomly during the day, triggered by some kind of movement I will get a sort of electric current sensation always starting in my lower back and spreading to my arms and legs. Never above the neck. Sometimes only the left side of my body, sometimes only the right side. I could also describe it as the feeling you get when you cut circulation off your arm from sleeping on it wrong, and when you wake up and move it so that the blood flows freely again, that kind of numb tingling you get. It kinda feels like that throughout my whole body. It usually last about 30 seconds and can happen several times a day. Anybody with any ideas? this has been going on for years, and has become more frequent.