Anyone out there taking Protonix or Kapidex for heartburn?

I've been taking Protonix for a little over a year now and it works wonderfully. Without it, my heartburn is so bad that no antacids or acid reducers would help. The doctor says he has no idea why at 23 years old, I have such horrible acid reflux. So, id the Protonix just numbing the pain and covering up a potential stomach problem or is it healing any possible problems in my stomach. I don't want to make things worse by covering up the pain and ignoring it for the rest of my life. The doctor said I can have a scope done if I want to but since I have no symptoms other than acid reflux, there's most likely nothing seriously wrong.