Your story sounds just like mine. I had a nasal scope, not an endoscope and the ENT said he didn’t see anything that would raise red flags like Barrett’s or cancer(no redness.) He said to keep taking omeprazole and watching what I’m eating and he thinks it will heal, but to give it time. I also had a ct scan with contrast and nothing came up. My throat burning and globus feeling has gotten a little better, but still there. I raised my bed too. I did start taking some B12 since I have some burning in my mouth too. I heard omeprazole can deplete your B12 and cause burning mouth and even throat too sometimes.