Neurogenic shock is shock caused by the sudden loss of the autonomic nervous system signals to the smooth muscle in vessel walls. This can result from severe central nervous system (brain and spinal cord) damage.
The medical term shock refers to the organs and tissues of the body not receiving a sufficient flow of blood. As a result of the imbalance of oxygen supply and demand, a build up of waste products occurs and can cause damage to the organs. This type of shock is known as physiological shock and can result in collapse, coma or even death if it is not treated immediately.
Often when people hear disturbing news about a loved one or have endured a traumatic experience, they also suffer from shock. This type of shock is usually referred to as psychological shock and occurs after a physically or emotionally harrowing incident. The state of mind is affected and in more severe cases, professional help may be required.
To the best of my knowledge pain falls under psychological shock but please remember I am not a physician.