My advice/opinion is to get off the Cymbalta before you get addicted like the rest of us! If you think going on is bad, just wait until you try to get off of it...HORRIBLE!! Way worse than going on. If you think an herb/natural substance could cure your situation (not sure why you were put on Cymbalta), then I would go that route for sure.
...of course I'm in the process of weaning off 30mg Cymbalta, so slightly biased and feel terrible today.
FatandTired