my lower right abdomen hurts.. i felt quite a heartburn.. and its been the 2nd day since it started to hurt.. i constantly burp and i now reduced the need to stool. when i press hard upon it, it aches, but it is a mild pain. i have a feeling it might be appendicitis, but i have not vomitted since the pain comes. the pain also comes sometimes when i take a deep breath. i have no nausea or anything fancy. the pain comes and goes, and i do not know what is going on with me. i ate lunch a day ago, and a few minutes after, my stomach had the pain and its been more than 24 hours now. i read a few observations and symptoms on a few websites and i think it may only be indigestion, but my greatest fear, that it would be appendicitis.