I've been on Lexapro for about two weeks. I was having tremors, difficulty sleeping, nausea, and muscle stiffness the first four days. My dose was lowered to 5mg. (from 10) and I haven't had any problems since. My mood is more stable, but I wouldn't say it was good, just yet. The anxiety is virtually gone and I haven't cried in a week after crying daily for six months or more. I am experiencing some mild sexual dysfunction. I'm waiting to see if it get's worse before I talk to doc about it. Good luck.