Are severe acid reflux and hiatal hernia related to snoring and excessive hiccupping?

Perhaps: Gerd certainly may be related to hiccups but probably not snoring. A large hiatal hernia can certainly cause hiccups but again would not be related to snoring. Being overweight is a common cause of gerd and snoring.

Connected Signs: Acid in your throat from reflux will create small patches of irritated tissue, which triggers coughs and hiccupping. One commonly found problem adding to symptoms of reflux is sleep apnea, so be sure you get that checked out.

Acid reflux: Yes. Snoring can be a sign of sleep apnea which means that an individual is stopping breathing for at least 10 seconds. This causes pressure on the abdomen, causing stomach acids to go back up the throat.