What are possible reasons that my hand hurts when i hear and see a crying baby?

Sounds evoke : Different emotions. Perhaps this evokes a memory of a physical state or just adds enough static to your your system that other seemingly unrelated items affect your hand. But a baby crying can be a powerful sound. And there are studies where sound provokes hand pain used in an experimental sense to measure sounds. Our cerebral wiring is complex. .. Speak to a neurologist it these things continu.