depression
"After taking Lexapro for around 2 1/2 years I weaned myself off about 4 months ago.  The biggest side effect while going off of it was a feeling of electric shock in my head.  It was a super fast thing and only lasted for a super short second, but it would occur at random times throughout the day.  After awhile though, I got used to the 'shocks' and knew they would be over in a short second and just lived with it.  I need to state that I did this very slowly, gradually decreasing my doses over a period of about 3 months.  NOT a quick process.  Initially I felt WONDERFUL after discontinuing this drug, but now, months later the depression has crept back."