I stopped the sertraline because the side effects were sudden and terrible - I would zonk out asleep in whatever I was doing. I decided I had to stop it when I could feel the sudden need to sleep coming on when I was standing up. I also had terrible nausea and dizziness, headaches, blurred vision, sweats, joint pain, to name a few. My anxiety got bad too but I think that was in part because the side effects were really scaring me and limiting me as to what I could and couldn't. My doctor suggested taking half my dose on the same schedule but I haven't decided if I'm going to do that or tough it out a while longer. I read it that is is out of the system after a few days but can affect the brain a lot longer. This is nasty stuff. I'm surprised the FDA approved it.