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.
Burping refers to releasing air and other gases from the stomach through mouth. Sulfur burps are a kind of burp which smells like rotten eggs or sulfur. This smell is because of the hydrogen sulfide gas which sulfur proteins contain. Sulfur proteins are found in some foods and are expelled when sulfur reducing microbes break them down in small intestine or stomach.