What would these symptoms be a sign of?

I'm not going to the doctor yet, because I don't thin it's totally necessary yet, and is just a virus. But my back and shoulders ache, a lot of the bones in my body hurt, I feel nauseated, dizzy, heavy, weak, difficult to move. I've also not eaten anything today and I'm not hungry. The strangest thing is the muscle pain, which I've never experienced while sick. I also can't think clearly and am groggy.