Hey Stari,
I have tried them both. This is my unprofessional opinion:
I would not take either one. I was on Lyrica, but I was drowsy all of the time (made the fog even foggier). I quit taking the Lyrica and the fog cleared and I did not have any increase in pain.
I have been taking the Cymbalta , which is pricey even on insurance, and I am not sure I am any better for it...
I tried to quit Cymbalta a month or so ago only to find out there are BAD withdrawal symptoms. After researching and finding that it is notoriuos for bad and long lasting withdrawal I went back on it until I have enough time off of work to get through the withdrawal. In short, I wish I had never taken it...
That is all I know, but I would research the Cymbalta withdrawal before starting it...