Most of my worst symptoms went away after the checkup, but it took a LONG while for my digestive tract to fully heal. I couldn't burp at all for ... maybe two years, the pressure just stayed in my stomach. Drinking small amounts of fizzy drinks and rising on my toes + slamming my heels down got the air out sometimes.
There are still things I can't eat because they instantly irritate my reflux, buttery pastries being the worst ones.