The anti depressant citalopram...help?

my dose has been increase from 20mg to 30mg. ive been on the 30mg dose for a few months but feel awfully tired in the afternoons, dizzy and feelig like im gonna faint. do u think this has something to do with the increased dose?
Update: to jolius, im taking them coz i have to, not coz i want to. and i excersize 3-4 times a week just for your information
13 answers 13