2 Answers 2. The Kindle iphone app does not read pdf or epub files without conversion. There are various tools you can use to convert from pdf and epub to the mobi format that the Kindle app can read. The one I use is Calibre, and it works pretty well. Epub files generally convert without problem, but pdf files might be harder, depending on how complex the pdf is.
Irritation of the stomach from spicy foods, smoking, alcohol, or infection with a bacteria called Helicobacter pylori may all cause symptoms of indigestion, which might include excessive burping. Burping is rarely a sign of a serious medical problem.
Belching is one of the ways in which a person forces excess air and gasses from his intestinal tract. While occasional belching is not seen as anything harmful, excessive burping may be the sign of stomach problems that could require treatment. Assessing your eating style and overall health can help you determine the cause of your frequent burping.