@itsnotanxiety- I'm glad that you saw an ENT. Be careful of what you eat, that your choices are low in acid. Some people swear by an alkaline diet.
Also, if you still experience symptoms while your body adjusts to your new medication there are several things that you can do like raising the head of your bed.

Here is more information about GERD and you can also google questions additional that you have.
https://www.mayoclinic.org/diseases-conditions/gerd/symptoms-causes/syc-20361940
I look forward to hearing back from you.

@isnotanxiety I was wondering how you and @gabrielm, who started this thread, were doing. I started a new thread under lung health about a possible underlying cause of shortness of breath, air hunger, yawning, etc mentioned in a post by @yaramathe. Basically doctors and scientists in a new-to-me field of medicine called functional medicine are looking for underlying root causes of diseases. They are finding that MAST cells running amok, that don't show up on regular medical tests, cause diseases in every system in the body. The symptoms they identified as MAST attacking the respiratory system are shortness of breath, yawning, air hunger, coughing, etc. I hope you will read the post - https://connect.mayoclinic.org/discussion/possible-root-cause-for-sob-air-hunger-difficulty-deep-breathing/ to see if this might be relevant to your condition. It was a real AHA moment for me to learn about this in terms of thinking about a lot of seemingly unrelated medical issues I've had in the past 74 years. MAST attacks come and go and negatively impact different systems in our bodies at different times. I hope the new medication helps! Nancy