insomnia
"It was given to me in the hospital to aid in sleeping.  I woke up in another hospital bed down the hall.  It was empty and I was trying to get in that bed.  I had a heart monitor on, but I had moved out of my room, and was half dressed wandering the halls until I came on the nurse station.  Why didn't someone know I was having an issue, because of my disconnected heart monitor?  They put me back in bed and seemed upset at me.  They never explained.  I just took it once.  I was awake but couldn't see or know what has happened, or about to happen. Could have walked off a bldg. "