My seven year old son recently had the flu, and as caregiver, I naturally got it too. The most important thing you can do when you have a fever is keep a glass of water nearby and just take sips here and there. My son had a fever of 103 degrees but he kept ice water with him all the time so that he could keep hydrated. Eating is not nearly as important as drinking when you are sick. I also found that lemon icees keep the water content up in your body and also taste really good going down!
Thankfully, we are healthy again, but I definitely recommend Gatorade, water, popsicles or something to keep your water level up in your body. You will get better faster and your body will thank you!