I'm concerned that you were started on 40 mg of Celexa. Usual starting dose is 10 mg and titrate up to 20 mg after a couple of weeks. The danger of any antidepressant is that they can switch a bipolar person into mania, and the higher the dose, the higher the chance that this will happen.

I understand the doc wanting to jump-start things to get you out of the depression quickly, but that is a whopping dose for anybody right out of the starting gate. I've been taking Celexa for a year myself, but my pdoc will only let me take 10 mg because he saw me flip into mania after I went to 20 mg. That's not to say this will happen to you. But I would be extremely cautious if I were you, and monitor yourself to make sure you're not ramping up into a manic episode. Just saying.