It seems that all of a sudden the meds I've been on for about 6 years don't seem to be working anymore. Zoloft and Klonopin before bedtime helped for quite awhile, but my overall pain has gotten worse and I am no longer able to sleep. It seems I can't sleep straight through the night. The doctor doesn't want to increase my Klonopin, but wants me to try Cymbalta. Will this make me gain weight like the Zoloft did? Anyone else find it helpful?