Flu Question.?

I was wondering... why does your body hurt when you have the flu?Flu Question.?
My reading (and I haven't researched this, just be told by nurses) is that influenza uses your body's cells to reproduce. It attaches itself to the cell and uses the cell resembling a little virus factory; consequently the cell bursts, releasing virus into your bloodstream, where it finds hot body cells and starts over. Ouch!
Another, more methodical, explanation is that your body produces proinflammatory and fever-causing cytokines (in other words, substances that cause inflammation and fever) to sustain combat the virus. And of course, inflammation and frenzy can hurt.
When you have any type of infection, the immune system (which fight off infection) is stimulated (unless it's auto-immune, or some retro-viruses).
This could be piece of it . . . but, I think more predictable is that viruses and microbes, like any other living organism, secrete stuff . . . we do -- we sweat, poop, exhale, pee . . . but, when bacteria and virus pee, poop, exhale, sweat . . . the stuff doesn't go outside . . . it go into your body. . . these toxins cause adjectives kinds of fun symptoms.