People die from pain-induced shock [1] all the time. I think the essential mechanism is that pain changes your heart rate and blood pressure. Small doses increa

People die from pain-induced shock [1] all the time. I think the essential mechanism is that pain changes your heart rate and blood pressure. Small doses increase both, but large doses decrease both. A large enough dose can make your heart rate and blood pressure drop enough to cause shock. [1] https://en.wikiversity.org/wiki/Neurogenic_shock https://en.wikiversity.org/wiki/Neurogenic_shock