At home ill

I’m at home ill today, I really hate it. Why is it when you’ve bunged up a not feeling well that you don’t seem to be able to shut off your mind? I’m here and thinking about work, what I need to do at home. Which is all well and good but my bones hurt and my head feels like a fish bowl. Why, oh why, have they not found a cure for the common cold.
I’ve been trying to be healthy this year, not drinking mid-week, eating better food etc. Since doing so I’ve ended up being more ill. How does that work?