Traveled today about 5 hours in car, and another 3 flying... Long long day. Feeling ok, tired... We were sitting in the truck and I asked my husband why he didn't shut off the engine. He looked at me and said" it IS off". I thought he was teasing me... But it was! I just had this sensation, in my torso, my bottom, my arms and legs of vibration. It's the oddest thing. Never have felt this before but it's very disconcerting.... Anyone had something similar??