What is up with the flu???????/

I decided to start my routine back in January, slowly. But not crawling. I've had the flu symptoms on and off now for five weeks. This is not a fun experience. The worst part is that I have not lost any weight because the flu has not affected my stomach at all. I only get sore throat, general muscle weakness, headaches, mild fevers, fluid retention in my lungs, and just the general need to sleep for hours on end. Now you all know that I am working graveyard and this flu does not help. This is the first week that I actually felt better, until I got up from my nap in the afternoon and now I can barely type this now. I am going back to bed. But I am not throwing the towel yet. I hope to start again tomorrow, and every day, for the rest of my life. Keep trying.