Any ideas what I have? Breathing changes, cough, chills?

Hi-

I have no idea what sickness I have and its really weird. Yesterday it started where my breathing was different. Once in awhile, but rarely my throat would sound gurgly. I have a stethoscope and listened to my lungs but I dont hear any fluid in them. At night then I got SUPER cold and couldnt warm up at all. Eventually I went between hot and cold. Also, when I got up after a nap by body felt extremely heavy as I walked. In the morning I was hot and cold for about an hour at work. I also felt exhausted. On break I took a nap and after that I felt totally fine....until night. At about the same time as the night before I had extreme chills. Once I warmed up, I feel fine. Oh and I have a dry cough which doesnt happen tooooo often, but when it does it hurts my head. Any ideas what I might have?