Hi i am day 5 into citalopram and find i am not sleeping at all, i've been taking it at about 4pm. My doctor prscribed some sleeping tablets yesterday to get me through but although i nodded of quite quickly last night i was still awake every 2 hours and tonight i cant sleep at all, even before i went on the meds i was sleeping some. Am i better taking my tablet at another time or will this pass?