I would like to know if you could explain why the palm of my right (dominant) hand begins to 'hurt' or more accurately I experience a type of prickling sensation when I experience 'fictional' sadness, that is to say when I watch a movie or read a book and feel sad often for the characters themselves but I only experience the sensation in situations involving fictional charters. regardless it is the hand sensation which is most important, I have had it for as long as I can remember. What could be the cause?