Taking a Sick Day

I have trouble taking sick days. I've been sick since around Sunday and I haven't done anything about it but drink water and increase my work hours because I'm at a book breakthrough. Yeah, that's not good for my body. So now I'm in fever land and resenting that I have to take a day off when all I want to do is work on pivotal stuff. I'm forcing myself to take a sick day. Well, husband is actually forcing me to take a sick day. But why oh why did it have to be a revelation day? Why couldn't it be a boring editing day? My pile of stuff to do is out the window and now I have to sleep.