Hi Sue! I had TN on the right side of my face for over 10 years and in the last year it has moved to the other side. I found a great book called Striking Back by Weigel and Casey ISBN 9780967239323. It really is a Bible for anybody suffering from facial pain. I have TN type 2 which means that I can be in constant pain for days. It hits me like a severe tooth ache. I had several unnecessary dental procedures before I was diagnosed properly. Does anybody know whether TN could be caused by damage in the brain stem or neck??