I am on 20mg citalopram, this will have been my first period since starting just over a month ago. My periods have been irregular anyway and dont get that many now as i have a marina coil (its going!). I have been the psycho bitch from hell, admittedly this weekend has been really bloody stressful but i have felt so depressed, worse than ever and i just wondered if anyone has any experience of the effects of ADs on PMT. I am mainly on them for anxiety.