When sitting if I lean forward for just a minute or two my legs become numb, I ve also noticed that for example when laying on the couch if I have my hand raised above my head, not even under my body or head, it will go numb after a few minutes. I also have really bad almost crippling cramps in my feet and hands, when they cramp my toes will bend inward or in my hands my hand will be stuck in a specific position