I have gerd and take omeprazole and zantac (ranitidine) for more than 2 years i've food stuck and recently diagnosed with hiatal hernia what should i do?

Concerned: I would recommend you follow up with a gastroenterologist . If your symptoms have persisted for this long with the food getting stuck, you may an an egd ( camera down esophagus) to look for a blockage or stricture.

First you need to: See a gastroenterologist. He needs to evaluate you and possibly do endoscopy and other studies to see if this is an anatomical problem, physiologic problem, or combination. Treatment would depend on how much either of these is contributing to your problems. There is also remote chance of precancerous changes of esophagus.

Consultation: I would consider a consultation with a general or thoracic surgeon with significant experience with anti reflux procedures. You would likely need some more testing to establish your baseline, then if you are a candidate, may choose to undergo a variety of procedures available to control reflux.