hi there, you seem to be suffering from laryngitis
brought on by the flu. You will need to give complete voice rest for 1 week to 10 days along with a course of antibiotic like azithromycin
500mg twice daily for 5 days along with anti-inflammatory tablet like ibuprofen
for 5-7 days and warm saline gargle periodically to be totally relieved of the symptoms. Quiting smoking
is not causing it and do continue not smoking which in the long run will be good for you. Take care.