I'm sick and its gone on for to long.?

Okay so on Friday during the middle of the day I got a small back ache. I thought I just slept wrong or it would go away. SO Friday night when I was trying to go to bed I couldn't. I got Cold when I got out of my blanket and too hot when I was in them. I woke up every hour or so. My back was killing me, I had a headache that went and came. When I took deep breaths with my back hit hurt a bit on the side of my ribs. In the morning I got a workout belt and put an ice pack on the back so I can ice my back. It worked for a couple hours but when I woke up again My bed was drenched with sweat. So I spent my entire day just sitting straight, walking a bit. and I took like 6 or 8 advils through out the day. I felt better last night. And I felt better today, but now its coming back pretty sure its a fever but its been lasting to long, and it comes and go. I was freezing like 20 min ago and its like 70 degrees in my house. So anyone have any idea what I should do. Won't be able to go to the doctor till tuesday. and personally I would rather not go. I usually stay sick for a couple days, but this has stayed pretty strong over the past 3-4 days.