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.
Common Causes of Belching and Burping. 1  Some kinds of food that causes a person to produce too much gas in their stomach include fresh fruits, certain vegetables, fizzy drinks like soda and beer. Even fruit juices like apple juice, prune juice, or grape juice may induce a lot of gas in the stomach. But the most common cause for belching is excessive consumption of aerated drinks. When you are suffering from a bout of belching, try and remember if you have been swallowing a lot of air.