So when my anxiety is high i get REALLY weird sleep sensations. Itll always be like im awake mentally sorta but my body is dead. (Sleep paralysis i believe) 
Sometimes ill be half asleep and my whole body feels like its vibrating. Or my arm skin will feel like its burning. It goes away once i wake up. And it never happens when im not in fight or flight mode. This nap i took i was half asleep again and my whole head was pulsing. It didnt hurt it wasnt painful. It was just a HARD pulse all over my head and neck and back. 
Does anyone else experience this kind of thing??