Unfortunately, just because the cymbalta is out of your BODY, it is not out of your SYSTEM. Your broken leg is healed, and you can walk again - but its not that easy. You stop smoking, but the nicotine cravings are still there. Your SYSTEM is still wired to expect Cymbalta, so you will feel all over the place.
As Hat said to me during my Cymbalta withdrawal... make sure you avoid anything that can cause stress because it is greatly amplified at these times. How right he was.
This is where you are at dear girl.
If you feel you absolutely need to get another med to stabalise and get you through your current circumstances, then that's what you must do. For now, just relax into each situation as best you can knowing that the withdrawal has ramped up your sensitivity. This is RTE... but an RTE on permanent sensitivity.