Hi. Last night at around 3am, I started to get really cold and couldn't stop shivering, even with extra blankets, so I took 2 advil and the fever broke within an hour. Today, I started to get cold and shivery again around 3pm, and I also have had no appetite all day. I took 2 more advil around 3:30, but I'm still pretty cold. Not as cold as before though, so the advil has kicked in. I also feel weak and my face is flushed.