Trigeminal Neuralgia
 
 
Trigeminal Neuralgia is also known as Suicide Syndrome, because so many people who have it commit suicide.  Its symptoms include intense flashes of pain, but the physical and emotional affects on you are widespread.  The trigeminal nerve is a cranial nerve that innervates a lot of facial muscles, including the jaw muscles.  I've had great success treating trigeminal neuralgia by treating it as advanced TMJ Disorder.  See my TMJ Explained page for more information.