While I haven't had that happen to me, it is not unheard of in cases of LPRD. It means the acid's getting so high it's going down to your lungs. There are exercises tha help a bit with that, though mostly it's helped by dietary changes, techniques like biofeedback
You may want to try this: at some point during the day, when you've not eaten for a few hours and your stomach is empty, lie down on the floor. lift your head