1st insomnia, then depression and anxiety. I got to the point where I couldn't stand being at work because I was shaky and felt like I was going to jump out of my skin. I went out on disability and was started on Wellbutrin, Lexapro, Valium & Lunesta. It got worse and now, 6 months later I still don't feel right. I heard about the side effects of Singulair and immediately stopped it. I haven't taken it in 2 nights and am hoping for the best. Wouldn't it be something if I lost my job, lost my friends, and my joy of life (there were many times I wanted to end it), primarily due to Singulair?