I'm also sensitive to electromagnetic fields. I have to turn off the electricity to the water heater at the outside fuse box or I can't sleep at all.
The wrist straps burned my skin so only use handholds.
The negative lead also will burn my skin on my body but OK in my hand.
Problems with cramping and rigid muscles has responded very well to a balanced acid forming and alkaline forming diet (acid ash/alkaline ash) and staying on a strict gluten free, cow dairy free diet helped more.