Eleny - It could be a side effect. You should probably talk to your psychiatrist about this first though. Please don't stop taking your meds abruptly. I've done that (accidentally - I used to be really bad at remembering to take my meds until I got an app on my phone that helped remind me) and it wasn't good. Now I'm on a few extra meds as well as Lexapro, and I have been tired.

That said, I do work night shift hours so that could have an effect on how I feel. You may want to look at what your schedule is like. Maybe try to get an extra hour of sleep in? Or a nap?

Either way I hope you find what works for you.