Whisky and at least some red wines are aged in oak barrels and as a result contain "congeners" from the oak. Some people have digestive problems with these. Not sure about the others you list, but my guess is it's a constituent problem and a physiological reaction as opposed to an allergy (an immunological response).
You are only managing or trying to manage the symptoms and not cure the root cause problem/s.
Persistent GERD symptoms indicate in my non-medical view that the sphincter in your Oesophaegus is not functioning as it should and this is anatomical issue, whoever way you manage perhaps you might end up getting silent (alkaline) reflux, which one GI surgeon has told me that is more dangerous than Acidic reflux.
If I were you I would persist for GI referral if not already investigated and diagnosed accurate and precise root cause.
I was wondering why you say that Silent Reflux is "alkaline" reflux, when it's acid (stomach acid).
Silent reflux is when the stomach acid rises above the Oesophagus and pools in the throat at night. The acid can damage the throat while we sleep. There may not be any symptoms until after damage is done. That's why it's called "silent " Reflux.
Rising stomach acid damages the Oesophagus in people with GORD (usually due to a huatus hernia) but in people with also Laryngopharyngeal Reflux ( silent reflux) acid damage affects parts of the throat.
An alkaline substance (such as bicarbonate of soda ) would neutralise the acid and help reduce the risk of damage.
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