My anxiety and depression have been bad for some time now but i was on citalopram and started to feel a bit better up my dose to 20 mg and still felt ok but now after being on 20 mg for over 3 weeks my anxiety is bk strong like horrible again and feel crap all day and my head is like a fog don't feel there at all. Could there be a reason for this with foods i have eat or something i eat fish fingers eggs weetabix ready breaks Rice krispies co co pops toast sardines rice white and brown. I have the odd sweet like a twix or Mars bar but not often also the odd burger or chicken burger but also not often anyone have any idea whats happening