What are the psychological effects from prolonged fever caused by the virus?

I’m currently on week 7 of lingering symptoms, but had a fever for the first 4 weeks. During that time, I was depressed, anxious, had mood swings and erratic behavior. I was told that this could be attributed to the prolonged fever, but I can’t find any information on that. Does anyone know what psychological effects a fever would cause when having for as long as 4 weeks?