I will normally take Ibuprofen for major toothaches or if I am feeling bodyaches when I have the flu. The problem is, I quickly build an immunity when I take Ibuprofen for toothaches. One time, I was taking three 200 mg pills about three times a day for about four days. When it got to the point where 600 mg a dose wasn't working, I decided to lay off the pills until my immunity went back down. I just had to endure the pain & look up at the ceiling while in bed.
When I take it for bodyaches with flu-like symptoms, it even though I am still miserable, I can move around & do what needs to be done. I don't like calling in sick at work even if I'm feeling achy. Generally when I get to the point of sweating profusely in an airconditioned room / building or having chills, that's when I will go home & get into bed.
Something that I found that works when you are having chills, is take the clothes you are wearing & put them in the dryer for about 5 to 10 minutes. This will make your clothing warm. You'll be able to stay comfortable longer than by covering up & uncovering with a blanket. The best part is you won't have to keep getting out of bed to adjust the airconditioner.