For the last few days, I've had a very bad body fatigue, body aches, had a hard time sleeping, 2 sets of chills, & several fevers/headaches, which I took ibuprofen every 6-8 hours to control. I slept for a whole day & 1/2, sweated a whole day, and now I'm over the body aches, fever/headaches & chills hopefully, but still a little fatigued... but I have a red rash patch on my chest under my right breast, about the size of a handprint. Is that something I should worry about? It is not bumpy or raised, just a red patch of skin that is not itchy.