Thanks for writing your query.
After reading your post, it seems that your doctor has correctly understood your symptoms.
I would advise that you can take an antacid like Omeprazole
40mg once a day before meals along with Domperidone
30mg for few days.
along with digestive enzyme
preparation containing pepsin and fungal diastase after meals will have added benefits.
You should avoid gas producing foods like peas, cabbage, legumes, etc.
Drink lots of water daily.
I hope this is helpful to you.