PGP,
If you feel like a trick ran over you, (no pun intended), achy muscles, Upper repiratory symptoms, you may have copme down with the flu. (even if you had a flu shot earlier this season)

Either way, Good luck on that, you'll probably be OK.

If you have trouble breathing, with wheezing, with or without fever, a trip to the ER may be in order.

I do hope you feel better.