Haha its pleasant to see you make it to 100 words In one way conversation people usually don't know what to explain Let me answer then you will understand Bad breath may have various causes some of them is due to oral reason some of them are due to other body part For oral reason we need to know 1) have you ever visited to a dentist 2) do you think your teeth are dirty 3) do you feel any type of bleeding and any time 4) do you have any teeth with cavity 5) do you feel the problem of food impaction in anywhere in the mouth (between the tooth /in a tooth) If answer of any of these question is yes then you need to fix the root problem first If answer of all the question is no then in some case bad breath is related with stomach So keep avoid being empty stomach for long Avoid drinking too much tea Avoid too much cold brinks No matter how much confident you are i will suggest you to visit a dentist he will differentiate the origin of problem

If your query is about bad breath then u could get a teeth cleaning done by a dentist. You may try out some otc mouth washes too. Also rule out if you have any stomach problems.. Acidity or indigestion can also cause bad breath.