Two weeks ago I came down with flu like symptoms..sore throat..body ache, fever, cough. after the body ache and high fever went away the cough stayed. and ever since, every night ive been getting a slight fever. i am also coughing a lot, its not flemmy at all and when i take deep breathes it sounds perfect, but my throat is just itchy sort of and tingly, and it makes me cough a lot. whats wrong?