Acid ReflEx, is something that happens (some people describe it as carsick, air sick, seasick, etc.) when your stomach "doesn't agree with you". Yours appears over exaggerated, so you might be a little more sensitive in that area. It's like if your out your two fingers down your throat, you may gag. A Gag Reflex is just like that. So if something's really nasty, or if you just are sensitive, then this may happen a lot. :D