I am currently taking Lexapro. I was pretty much clinically depressed after a heart bypass operation. Turns out that's fairly common for the bypass people.
I had no side effects to the Lexapro and it helped to bring me back to where I used to be emotionally.
Unfortunately that person I was before the bypass was an alcoholic. So now I'm working on that. After the operation I stopped drinking completely.
I'm very grateful to my doctor for the Lexapro. It helped to bring me out of the dark, black hole that depression is. That was a very horrible place to be. Crying all the time. Staring at my computer monitor at work for hours just praying nobody would talk to me. Sleeping 18 hours a day. No joy. Constantly fatigued because being relentlessly drains you. Things that gave me pleasure before meant nothing to me. That's depression.
My suggestion is to talk to your doctor and see what he/she has to say.