I was prescribed cymbalta last year. It was the worst thing they could have gave me to be honest. I didnt have withdrawl. But I did attempt suicide a few months after starting it. And seeing how I never knew there were warnings of suicide thoughts as a side effect. I didnt learn that until I heard it on their commercial the beginning of this year. I am not saying it completely had something to do with me doing that. But I feel it may have played some part in it. As I have been an addict for almost 20 yrs and never attempted anything close to that before.
My aunt also had a brain scan of some kind and her Dr showed her what it was doing to her brain. This is a different Dr than who prescribed the **** to her. He immediately weene dher down and off. He said it does mess your brain up.
This is just my experience. I think you need to talk to your Dr and let him know whats going on. I would never take or recommend that BS to anyone.