I cough all day long (for 2 months now) and for the last two days it has made me throw up..any idea why?

im thinking you need to see a doctor,you might have a bronchial infection,which makes you cough,see the doctor you need an antibiotic.my niece as a child had asthma so bad shed hack and hack til she threw up,thats called an emises cough.hope you get things cleared up and feel better two months is too long for a cough.