Acid reflux disease is quite common these days, and its presentation can be quite remote from what you would expect of an acidy stomach. Reddening of the tonsils, uvula, and if they scope you, especially the larynx, would be common symptoms. It is important that you take the proton pump inhibitors that they have prescribed. GERD is one of the fastest growing producers of esophageal cancers (usually adenocarcinomas) which are on the increase in the US. They take some time to develop and the formation of a change in the tissue of your esophagus, to what is called Barrett's esophagus is the first step.