For 4 weeks I have been on 100mg of Zoloft and 50mg of ZOloft for 2 weeks prior to that. Doctor decided to switch to Cymbalta. I took 50mg of Zoloft on Thursday and havent taken any since. I was supposed to take 30mg of Cymbalta yesterday and today but I am too scared of serotonin syndrome. Am I just overreacting? Is it ok to take the CYmbalta as I was told?