I don't know what's wrong with me

I've been feeling drained for about a week now... I finally allowed myself to sleep for more than 14 hours and let me tell you, I didn't feel any better. I went to Burrito Art and had ONE drink. About an hour later I thought I was going to collapse. My muscles feel worn out, I can't seem to concentrate on anything, I keep forgetting the simplest things, I'm binge-fasting again, and my emotions are just ....neutral. I feel apathetic about everything because just the thought of getting excited is exhausting. Everything is exhausting but it doesn't seem to matter whether I do something or lie down and do nothing - I'm still just as exhausted either way. I've faked my way through several social meetings and quite a few chores; I'm still exhausted. It's that "bone-tired" feeling that just makes you want to never move again.

I'm so incredibly tired... is the flu going around?