The First Day It Felt Like A Cold, It Was

The first day it felt like a cold, it was hard to get up my joints hurt I wasn't stuffy or a needy really though before this I was congested, and the whole first night I had a fever and chills and felt like I was gunna vomit but I would just burp, it's been 2 days and the fever hasn't come back but I still feel like I'm going to be sick but I just burp, I've also noticed I have had headaches and I don't usually get headaches.