Am I crazy or is this normal?

When I'm sick with a high fever I hear voices. I can't make out what they are saying but usually they are fighting and yelling and it varies of being a man and woman yelling or two men yelling. It sounds like I can hear them through a thick wall because their voices are muddled. I feel half awake and drift in and out of sleep but I can still hear them when I'm sleeping. I never hear them unless I have a high fever so is this a fever dream or something?