When I was taking lexapro for depression (similar to citalopram), I experienced such severe anxiety that I had to stop taking it...perhaps a revisit of the medication might be in order? Other than that, and with respect to your anxiety, which I have felt at other times, I often repeat to myself, "like all other things, this too shall pass". It has become (keeping with the meditation theme) somewhat of a mantra for me. It doesn't always work, but it does help me get through some tough times.