Thanks to everyone who answered my question on having a sympathectomy. You have all made me feel that I made the right decision not to have it done..Thank-you. I was recently given cymbalta by my PM doctor. She said it is one of the newest drugs to treat nerve pain and that the side effects are milder than lyrica and neurontin. After taking the first dose I was up all night unable to sleep even though I was exhausted . Also I had episodes of severe chills off and on for 24 hours. I haven't taken another dose and am wondering if anyone else has taken it and what your experiences have been. Hope everyone is doing O.K. Thanks again.