anxiety and stress
"After breaking up with my high school sweetheart, I would have panic attacks that would violently wake me up at night.  I knew I had a problem but it wasn't depression (later I realized anxiety) since I was happy to start over in college.  My stress of attending school even as a commuter laid heavy on my mind as well.  I went to my doctor, crying that I did not know what was wrong.  After 3 years, I still remain on Zoloft/Sertraline at 25mg.  I've always been told it's not a lot but it still really helps me.  I rarely get panic attacks anymore, and if I do, I don't throw up or feel dizzy.  I am happy that I haven't had any side effects or problems involving this medication."