annie
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        YES!!! I have experienced this.  sometimes the pain is so bad it takes my breath away or feels like i am having an heart attack.  What I did for my Hiatal Hernia was to visit a natropathic physician.  The stomach moves up through the enlarged passage in the diaphram into the thoracic cavity.  Not all the way all the time but it has the potential as I have felt.  Any how my natropath pulls my stomach down manually and oh what a relief.  She also helped me with my diet so I rarely have acid anymore.  It has been almost two years since I first saw her and I can count on one hand the number of times I have felt the pain and hardly anymore acid.  I would suggest you do the same.  Or see a chiropractor who has treated hiatal hernias before.  Feel free to email me. Good Luck.