Lately, not often, I woke up at night during sleep and have my hands tingle.Since its unpleasant sensation, I move them thinking I was positioned badly and have lesser blood on extremities-hands but to no success, i still have that feeling. Any answer why this might happen, I'm 43 years old male, working on written translation on documents with typing,my blood pressure is 130-90 for which I take medicine and have no other health problem, except sometimes sleep disorders due to stress on work for which I also take medicine.