I am curious to know how often everyone's TN has occurred alone or if it traveled in a posse with some other illness? I have an autoimmune disease, and it is possible that if this is confirmed as TN, it is comorbid with that illness. Since this whole thing took me by surprise, I am trying to figure out HOW I came to be in such pain in the hopes I can understand a way out of it. Hopefully the Lyrica will kick in....