Thanks for the replies guys!
I asked my rep about it a while back, when it only happened when I laid down. She said that she has heard of it happening from some of her other patients...some didn't have it completely off, it was just set very low. I haven't discussed this sensation that has been happening constantly with her yet. I only had the stims on for about an hour on Sunday and the stimulation is still here. I don't see how that can be so normal. I had x-rays taken last week, still waiting to hear from dr about them.
Rae - turning them off eases that pain/pressure in my back, but it doesn't go away completely now

Sorry you are having such problems with your back!