Central Pain is the name for a pain syndrome which occurs when injury to the Central Nervous System is insufficient to cause numbness but sufficient to cause central sensitization of the pain system.

An injured motor nerve simply carries less current. Injured pain nerves, paradoxically, do exactly the opposite, they increase their signal. It is not a simple increase, however. They eventually gain the power to humorally influence uninjured neighbor neurons, which begin autonomous firing.

The process can become so violent that the thalamus, the brain pain center, records "bursts" of impulses from these injured nerves. After sufficient bombardment threatens neuron death in the thalamus, it "shuts down". Central Pain apparently occurs at this point. It is as if the entire pain system is acting like a nerve ending. Ungated pain signals thus reach the cortex, causing unbearable suffering.(Devor's work in The Axon , ed.Waxman, Oxford Univ. Press, 1995).

For me central pain feels like being wrapped in aluminum foil, broiled for a bit, then the foil is attached to electrodes where low voltage is constantly being fed to create a feeling of being wrapped up in electricity, buzzing like a computer that never gets turned off.

I feel like I am kneeling on large pieces of scalding, broken glass.