Is burping and throat/chest tightening symptoms of acid reflux? Is so what are some holistic or natural cures for this disease?

Yes and no... Healthtap is full of answers regarding gerd's causes, variations, and approaches for prevention. Please type "gerd" in the search box, and i think you'll find all the responses you could want! please however don't make the mistake of assuming chest discomfort is of esophageal origin until other problems, like heart and lung disease, have been considered and ruled out.