I might have experienced akathisia. Certainly I had all of the symptoms, it's just for some reason my psychiatrist wasn't calling it that and was considering it more part of a mixed episode when I took lexapro. The recent psychiatry resident I saw described it as like akathisia when discussing my history though. Having to sit still made me want to jump out of my skin, and was almost painful. I recall speed walking around the airport instead of sitting still at one point. So uncomfortable.