Kim,
I did take Lexapro for about a week and the only side effect I had was insomnia. It actually made me manic. But remember that everyone is different and has different experiences with medication. I have heard about many people on Lexapro who absolutely swear it has changed their lives. Good luck with that!

(for fairness I should add that I am very sensitive to medications and never have good experiences! so, don't base your possible experience on my bad one. know what i mean?)