Dear Donna
the only other drugs i can think of similar to Cymbalta which also treat pain are all newer, therefore non generic, and very expensive! Lyrica is the one that comes to mind.
i believe you already take gabapentin right? but if not, and the reason you was it because it pooped out on, you could try that again, provided there has been a decent period of time (year min) when you did not take it.
enjoy your little vacation
~ waves ~