If you have reflux, the most likely cause is lower acid pH in the stomach.
The brain reveals the problem and orders even more acids
(to complete the processes that only take place in the stomach). Now there are too many such (weak acids).
Food stays longer in the stomach.
Gases are coming.
Stomach pressure is growing and somewhere must go out.
Up or down!
Up = gastritis.
You need to eat selected foods. Multiple times. Less quantity. Good, good chew. And it will be better.
Greeting.
Tnx for reading