Citalopram withdrawal! Fast heart rate, please help!

I've been on citalopram (20mg) since october and weaned off of it last week under the supervision of my doctor. i went to 10mg for a week and then stopped it completely. i was doing fine the past couple of days but today my heart rate is fast! How long until this stops and is this normal? Thanks!

I get ectopics and head zaps when I haven’t taken citalopram for a while. Maybe you are coming off them too quickly?