Specifically, I have already gotten through the brain zaps and vertigo and I felt ok for about a week with some mild moodiness (going from happy to a little sad for about a 20 minute span for no reason) a couple times a day. This week is different. I have been feeling depressed most of the day and it goes away without any explanation but what worries me is that I am starting to feel depressed most of the time vs. for just a few minutes occasionally. I have never had depression before. I was diagnosed with GAD which is why I was put on Cymbalta. Is this just withdrawl? I am afraid I am going crazy and am I going to be like this or need additional medication forever?