I Have Had Constant Pressure On Base On My Throat

I have had constant pressure on base on my throat for 4 months. A recent endoscopy showed nothing changed from past test (small Hyetial hernia) . I have an appt w an ENT but wanted to get some ideas before. I take Prilosec OTC daily for acid reflux but went off it. Per pcp recommendation and attempted to managed w Zantac and tums w no success. That is when this pressure developed. Not sure if it's related/causal or just coincidental. Food or no food this pressure only abates when I sleep (laying flat). Any ideas that I should prepare for in advance of ENT?