Bloating is the second sign of the acid reflux. It can also be the symptom of some other digestive phenomena. The main reason for bloating to occur is the gas trapped in the human stomach. Acids in the stomach may also lead to this uncomfortable and annoying feeling. There are many other factors that lead to swelling. Thus, it is important to consult your health care professional to find out whether you experience discomfort because of the acid reflux or some other, more dangerous issues. They could be the source of the pressure and bloat you feel.