anxiety
"I've had anxiety my entire life, specifically with social interactions, and in the past year or two have experienced severe panic attacks. The anxiety and panic are linked to my depression, which altogether led to me being hospitalized. When I was there, they prescribed lexapro for my depression and hydroxyzine for my anxiety. The hydroxyzine meds took me out like a light, I could not stay awake to save my life. And when I was awake, I was completely out of it. After a few months of using it and getting used to it these side effects stopped, however it was hell waiting for them to stop. I would not recommend to anyone working, as I was at the time, but if you're willing to wait out the period of absent-mindedness, it can help calm you down."