Lexapro was a lifesaver for me. Took awhile to kick in, but completely and utterly saved me. Went from daily panic attacks to a successful and fulfilling life. Have been on 15mg a day for 3 years and would never look back.

Taking a small dose would NEVER cause the feelings you had. It's 100% anxiety, pure and simple, and if there are tiny side effects they will subside in days.

Hang in there.