My experience with Lexapro was that I was so sedated I could barely hold my eyes open. I've known others who had a similar experience and I've known others who had the complete opposite response. My pdoc said that neither reaction is uncommon and unfortunately there is no real way to predict ahead of time how a patient will react to Lexapro.

Could it be that the Lexapro is making you feel fatigued and therefore unproductive or unmotivated?