I am on Lexapro and have been for a year and a half. It was the 3rd antidepressant that the doc tried me on. My doc tried me on Effexor first, but I had BAD headaches every day with it, so she switched me to Zoloft. I did really well on that one and started to feel better (mentally), less depression, etc. until as it built up in my system, I was getting awful twitches, especially in my hands and legs. She finally switched me to Lexapro, and I have stuck with this one. I think the only side effect I had at that time was upset stomach for a couple of days, but then again, the Zoloft was still in my system and took a while to get out. I do really well with the Lexapro, but when I've had to increase my dose from time to time, I get some side effects. It took a while to find the right dose for me. As for the anxiety .. some anxiety is normal when starting an antidepressant.. tell your doc. He may prescribe you a benzo to use for a short time until the med starts working (mine did). I'm not sure what time of day you take your med, but since mine made me sleepy, I take it at night. If it makes you have some insomnia, you might try taking it in the morning. If you give it a little time, the side effects might subside, but if not... maybe a different med would be better for you. Best of luck, and I hope you start feeling better soon.
It's a jungle out there.....
Theme song from "Monk" by Randy Newman