What Causes Sinus Irritation Along With Tightness In Chest?

first day {yestrday) jan 8 15..tightness in chest..feeling fine no head or throat symptoms today lots of deep coughing, loud mucus breakup in lungs light fever...a little runny nose no unusual sinus irritation have pneumonia vaccination and also flue vac this year. 78 years old oh also feeling extra weak now. any teas or food to help break up and expel mucus?