Years ago, I was on Citalopram 10 mg for panic attacks by my general practicioner. I felt great. I was able to get my fear of heights under control on that dosage. I was eventually able to get off of it and haven't had a panic attack since. Well, I started hitting myself when I got really angry and I am currently seeing a psychiatrist. She diagnosed me with OCD. I forgot what dosage I was on prior and she prescribed the 20 mg dosage to control my hitting compulsions, thinking that was the dosage I was on. I found out on a patient portal for my GP after the appointment that I had actually been on the smaller dosage. It is working very very well for the hitting compulsions, but I feel as if I can't get really happy either. Is this normal? Do medications work for you once and not work in the same manner again? I have another appointment next week.