Our expert says:
Because the thyroid is located in front of your windpipe and your esophagus is behind the windpipe, a thyroid must be quite big to put pressure on the esophagus. An underactive thyroid can sometimes cause this feeling but it sounds as if you are taking more medication than previously. The quickest way to find out if there is something wrong is to see a gastroenterologist who will do a gastroscopy to see if there are any signs of narrowing or growths in the esophagus. Your GP can refer you.
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