Why do i have a nauseous feeling and pain in my stomach? its really borhering me and now my mid chest is starting to hurt to. what is this?

Nausea and: epigastric abdominal discomfort are symptoms of a number both of self limited, non-emergent and potentially serious conditions that venturing a guess here would be fool hardy. If your symptoms persist beyond 48 hours I would strongly recommend you see your doctor. One very common reason though is pregnancy and you may want to do a home pregnancy test as it will be done by whatever doctor you see