depression
"I'll keep this short. Before Zoloft I was highly irritable. Couldn't keep a girlfriend even when they were crazy about me. I couldn't get along with my mom. I lost a lot of friends also with my mood swings and the way I would lash out at people for the smallest things.

Then I started taking it. Sertraline changed my life. I kept the longest job ever. Before I couldn't keep a job long because I would always annoy someone out. I had my longest most healthy relationship ever. My mom and I were like best friends. 

Then when I could get down in the dumps emotionally it would be rare but far worse then I would be if I wasn't on Zoloft. "