HI, I AM JUST GETTING OVER WHAT I THINK WAS THE FLU, HAD FEVERS, BAD HEADACHES, CHILLS, AND A VERY BAD COUGH. NOW WHEN I COUGH HARD, I SEEM TO BLEED FROM MY RIGHT NOSTRIL. BLEEDING IS THINK AND JUST RUNS RIGHT DOWN MY SHIRT IF I DONT CATCH IT IN TIME. WHAT COULD BE CAUSING THIS?