post traumatic stress disorde
"I suffer from Post Traumatic Stress Disorder, panic attack, aggression, paranoia. I started with Sertraline a few month ago 100mg. Before that I used Citalopram for a year 30mg which caused head pressure so I wanted to stop with it. 100mg Sertraline made me and zombie like, low concentration so after two months I lowered it to 50mg day. My aggression came back but I had more concentration and willing to get out of the house. 
At one stage I felt like this medicines is not helping so I decided to quit and I began to take 1/3 of the 100mg tablet a day (approx 35mg). I've read that one is never to go cold turkey with SSRI's (side effects). 
My paranoia came back with vengeance! So I went back to 50mg and paranoia went away. I think I will try 100mg again."