Sorry to hear about it. I've only had the flu once in my life, but that knocked me out enough that I'm not thrilled about the possibility of ever repeating it. Get well soon!
You could try to Japanese solution to colds and flues - tamagozake (eggs and sake). I looked up a recipe for you (→here). It says for colds but people use it for flu too.
Thanks for the recipe. It sounds similar to eggnog. Hubby bought a couple bottles of sake recently, I'll see if he let's me open one of them