I havent taken cymbalta but it does sound as if it is related and will stop as soon as it is out of your system, if it doesnt get it checked out, I too dont take any drugs any more due to awful side effects and long term effects no one tells you about, Hydroxyzine was the last one ,after a weelk of struggling on it , it all but knocks you out, I had what could only be described as similar to a Gall Bladder Attack, I reseached and found out that Hydroxyzine (used as an antihistimine and other things)) can trigger viral infection.2years ago I ended up in ER from 2 prescribed Meds reacting with each other , and the Doc prescribed them together.