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This is called gastric reflux
where in the acid from the stomach comes back into the throat giving rise to all these unpleasant symptoms. And, this is common in your age because of the laxity of the valves controlling the reflux. You need to consume plenty of water, avoid alcohol or smoking
if any. Consult your physician for medicines to relieve your gastric problem. Try to lie on the left side, use a thicker pillow and consume your dinner at least 2 hours before going to bed.
Dr. Naveen Kumar