Should I be concerned about my stomach?

Ok so at about 2 AM this morning I started getting a VERY upset stomach as in burning like I just drunk gasoline and then feeling like I had to vomit every 5 seconds. I can't drink or eat anything without my stomach burning then feeling like I have to puke plus Im very dizzy and cant sleep because of this crap. What should I do? Ive tried acid reducers and everything and nothing seems to be working....