One of my worst manic-psychotic episodes lasted 8 weeks. In that episode I had to be restrained and sedated. I was a frenzy of psychotic energy. As the episode resolved I had an awful time with my short term memory. I was afraid I was permanently injured. My psychiatrist was great. He reassured me that with severe mania with psychosis memory interruptions were expected. He also reassured me I'd get my short term memory back. I did. My long term memory of that hospitalization is spotty. Other people had to fill in the gaps.