"i have been on citalopram 20mg for exactly two weeks now. side effects i have been experiencing are nausea, nausea when yawning, constant yawning, appetite decrease (down 13 pounds), fatigue, flat affect (numb personality, expressionless face) and intense, deep negativity. i am taking citalopram for severe anxiety and major depressive disorder. i had some suicidal ideations before starting the medication, but now it feels like my depression is on steroids.  i am working closely with my therapist who wants me to speak to my prescribing doc about the dose. i am unsure of what to do at this point because i haven&#039;t been on it long enough to experience the benefits. mostly i am terrified of being locked up."