I THOUGHT I HAVE THE FLU, BUT I RARELY EVER GET SICK. I HAVE BEEN EXTREMLEY TIRED FOR 6 DAYS, HOT AND FREEZING, DIZY/LIGHT HEADED. SOME ACHES AND PAINS. NO STOMACHE ISSUES. HAVENT EATEN. WHATS CONCEARNING ME IS I HAVE A CHEST PRESSURE THING. ITS NOT SORE, BUT AWAYS PRESENT. KIND OF LIKE THE VERY VERY START OF HEARTBURN, THAT NEVER DEVELOPS INTO HEARTBURN. I HAVE NOT TAKEN ANY MEDS. IM PHYSICALLY FIT, 35 M.