Your problem definitely involves bad breath.. But don't worry.. Try to avoid spicy and citrus foods. Drink plenty of water mainly in the morning empty stomach. Clean your tongue at night also. Avoid coffee and tea if possible and eat at least two hours before you sleep

The cause of bad breath could be anything from dry mouth to the foods that you are consuming or smoking or other respiratory tract infections or some medicines that you are taking.please drink plenty of water.make a log of all the foods that you are consuming and medicines and show it your dentist. Stop smoking if you are continue the oral hygiene routine

Keep maintaining the oral hygiene by proper brushing by the technique as described by the dentist. Flossing between the teeth and using chlorhexidine based mouthwash is an added advantage to your oral hygiene practice. Make sure that you are well hydrated because dehydration is one of the causes for halitosis. As far as the tongue is concerned, make sure you clean your tongue everyday after you brush your teeth but make sure to use only your soft bristled toothbrush for that purpose. Use of wooden or plastic or metal tongue cleaner should be avoided. Regards.