I am thinking that maybe the numbness is associated with low blood flow. I think that is what causes numbness, like when you set your head on your hand while watching TV, and then find out it’s numb. Maybe treatment for GD lowers blood flow or pressure enough that you notice it when you sleep- I mean your metabolism does do down along with your heart rate and blood pressure when you sleep. Maybe it has something to do with a too low heart rate or pressure during sleep. Just and idea.
Good Luck,
Ron
PS- I’m just posting the heck out of this BB!!!