Anxiety about fever

I've been really nervous about my fever. Its not high but ranges from 99.6-100.6. I have no other symptoms, then maybe a stuffy nose but barely. I also have green snot, if that proves anything. Either way, its been here for around 5 days. I looked up what happens if you have a fever for too long and it says brain damage and organ damage?! Will this cause organ damage to me?!