I agree with Glenntaj. I do not have the sensations all the time, sometimes I may even go a few days without any. The reason low pressure cell that went through, did throw my sensations into full force, along with muscle aches and such. Sometimes, I will have vibrations on and off all day, yet no rhythm to the vibrations. Some days I get this electrical shock in the back of my calves, sometimes very strong hurting ones, sometimes just irritations.
The one time I can count on constant sensations is if I run out of B12.