I've been diagnosed with a GAD a few years ago. I haven't had any anxiety attack in over 2 years. Now, it's time to go back to school (I'm 35) which my brain doesn't understand lol. I've been taking 2.5mg of Lexapro in the morning and another 2.5mg at around 5-6pm. I'd say the first 2 days were fine- no side effects except for a little dizziness. Then, this horrible anxiety would kick in that caused me severe panic attacks. I have 'good days' and 'bad days'. Sometimes, my heart is racing like crazy at night or I just wake me at 3-4am and can't go back to sleep. I've been taking Xanax to put me to sleep (last night was the second night of taking it), I tried Trazadone as well, but that didn't work. Today is my 7th day of taking Lexapro. I wonder if I should keep taking it or just switch to a different one. Maybe I'm allergic to it? I've been on Celexa and took the full dose with no side effects, Paxil wasn't a success though. What's also strange is that I've switched to Lexapro before from Paxil and was on a low dose as well (it was probably 5mg or 2.5mg) and didn't have these horrible side effects. I've been reading reviews here on this site and some people are saying that the side effects go away after 2 weeks or longer. But I am not even on 10mg! I am just at a loss.. please help!