Im a 17 year old healthy male whose been suffering from severe flu for the past few days. Last night, my parents ran next to me in the middle of the night while I was sleeping to a loud bang. I don’t remember anything, but apparently I was hitting my head on the wall, running around the house, and I was very scared of something. I was just running, and the only thing I remember was severe fear. It lasted 5 mins. Is this normal with flu? Is it a seizure?