Hi.
Thanks for your query.
Noted the history and understood your concerns.
Since you are a known patient of hiatal hernia with GERD but allergic to PPI and H2 blockers also, it is a difficult situation and you have associated Pulmonary 
hypertension and other problems like dry eyes too.
Hence I would advise you the following with explanation:
GERD is Gastro-Esophageal Reflux Disease meaning there is reflux of the stomach contents back into the 
esophagus which does not occur in a normal situation.
Try 
Domperidone or any other Motility regulator so the the reflux is reduced and you can take any antacid in the liquids form whichever suits you the best.
This should solve your symptomatic problems.
Also you can try 
Famotidine to see if it suits.
Yes, Hiatal Hernia Surgery can help to relieve the symptoms in selected patients which is as per the findings of upper GI 
Endoscopy and Barium studies. Discuss in detail the pron and cons of hiatal hernia surgery and you may also need some anti-reflux measures/surgery. Go ahead with surgery only if you are convinced about the effectiveness.