After nearly a year of trying to get to grips with my anxiety my psychiatrist wants to try swapping my citalopram (which I have been on for 15years) for sertraline. I also take mirtazapine (added 3 weeks ago) and a small dose of olanzipine (added 9 months ago). I'm scared of switching to sertraline as have heard about (and witnessed) some horrible initial side effects. I had a horrendous time increasing my citalopram last year so really can't face that again. But I'm also desperate to get rid of the awful, awful panic. Anyone have any words of wisdom?