Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern.
As per your complain and presentation of symptoms all the symptoms indicates 
Acid reflux and if there is no improvement with dietary adjustments and taking enzymes then intake of prescription drugs and including more remedies that can be done at home is needed..
For acid reflux you can take antacids like 
Milk of Magnesia half an hour before the meals.
You should take 
Proton pump inhibitors like 
Pantoprazole or 
Omeprazole.
Drink plenty of cold water as it helps in dilution of acid.
Take more of probiotics like Yoghurt.
Take small meals every 3 to 3 hours.
Avoid spicy and heavy meals.
Eat atleast 2 hours before sleeping.
Always take a short walk after meals.
While sleeping keep your head at a higher position then legs.
Avoid stress and relax as stress can further deteriorate the condition..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.