I was on Lexapro for a month and had awful side effects. I took 10mg. I had occasional dizziness, nausea, and heightened anxiety. I always took it with food. That being said, the dizziness should go away within 2weeks so you might want to talk to your doctor. Body chemistry changes, something that worked a year ago won't necessarily work now.

Personally, Lexapro did not help me at all. I am now on Zoloft, and though the initial side effects were awful I think it's helping now.