trigeminal neuralgia
"Although the side effects can be very difficult to deal with but the pain of Trigeminal neuralgia is far far worse.  This last attack that I had with the disorder put me to my knees begging to die so I started my Tegretol once again and now 6 days into it no pain at all.  I am very nauseated and extremely dizzy but I will take the side effects over the pain any day of the week."