Hi, took first citalopram last night 10mg to increase to 20mg next week. Have to say felt awful really spaced out and unable to think straight, like I was drunk but without the good bit, felt more anxious than ever. This been prescribed for anxiety. last time (5 years ago) had fluoxetine and can't remember feeling terrible like this but I was more depressed than anxious. Do they do different things? Thinking of asking to swap, making me anxious about taking next one as really don't like that feelng