Good Morning Wandering
Welcome to HealingWell. This is Kitt.
There are a number of less common but more serious side effects of Lexapro that you should report to your healthcare provider. These include but are not limited to: anxiety, agitation and panic attacks. I think a simple phone call to your Physician to discuss your sx would be a wise decision.
As the other wise and caring members have pointed out it does take 4-6 weeks to reach the full therapuetic dose of most of the ADs.
Again a warm welcome.
Kitt