Hi there, Thanks for your query. All your symptoms are suggestive of a chronic sinus infection (called Sinusitis). Sinusitis is very common in those who have a nasal allergy, deviation of the bone between nostrils or, nasal blockage due to allergy-induced growths in the nostrils. You have not mentioned if you get frequent attacks of common cold. Other possibility is acidity with backflow of stomach acid and fluids into the mouth (called GERD= Gastro-Esophageal-Reflux-Disease), particularly during lying position. Specific treatment with anti-acid drugs and Prokinetic drug, such as, Metoclopramide, will cure your disease. Consult your doctor and apprise him of my opinion. I am certain that he will agree with me, order required tests, and- based on the reports- will prescribe suitable/modified treatment as advised. If you find my response helpful and informative, do not forget an “excellent” (5-star rating) to my answer, to ENCOURAGE ALL doctors- engaged in social service- to render sound advice to the FREE queries. Take care Dr. Rakesh Karanwal