Hello, Neide55, Thanks for contacting HCM. I know it could be very frustrating to be experiencing these symptoms which could affect your quality of life. First of all , I am sure your doctors have ruled out any throat or lung problems by appropriate tests , chest x-ray , ENT examination etc. GERD can manifest in many ways and chronic cough, especially at night times could be very problematic in some. You are already doing your part by elevating your head of the bed at night. You mention that you have been on Nexium for the past 11 days. I want to make sure that you take this about 60-90 mins. before your main meal. If a single dose is not helping , try taking it twice a day again the last dose 60-90 mins. before your evening meal. Don t snack at least 2 hours before bed time. Limit caffeine. I am sure you are already avoiding tomato based products, dairy like cheeses etc. Limit fatty foods as well because they can delay stomach emptying and make the reflux problem worse. I am glad that you are scheduled for endoscopy. The doctor can take a good look inside and determine how much damage is there to the lining of the esophagus and stomach. I hope this helps you till you get final answers. I wish you the very best.