Yes, there can be a link. Every time you stop breathing, you create a vacuum effect that can suck up your stomach juices into your throat (causing your voice box inflammation which can lead to hoarseness, cough, lump sensation and post-nasal drip). It's been shown that stomach contents can then either go into your lungs or into your ears or sinuses. Consider that it's not just acid, but bile, digestive enzymes, and bacteria that's coming up.