I've been on 20 mg citalopram for depression and anxiety for just over 2 weeks now. I'm no longer tearful, occasionally I feel happier but my anxiety is so much worse. I feel like my stomach is in knots and I can't breathe. My sleep is still rubbish, I can't fall asleep and then wake at 3 or 4 feeling anxious. Shouldn't it have improved by now not got worse?