The medical methods all cause damage. I have seen them scrape the voice box and some people may not be able to talk for 1 month after being scoped. There is also a common operation now that actually narrows the throat as a method to stop acid (if that would ever make sense) and 3 people I know had this done and all 3 almost died on the table and today all 3 can not throw up (for life)and all 3 must chew their food into a liquid.
The key is chewing your food into a liquid. Dr. Christopher said, Chew your liquids and drink your solids, in other words, nothing is swallowed until well mixed with saliva and the stomach is not a blended, what enters will stay that size.
Your very simple solution is to just eat right by proper chewing and you have no real problem that needs an operation, sense you were born that way.