Nothing to worry for you, you have just got an asymptomatic hiatus hernia
where the content of the stomach including the acid(secreted from stomach) may goes to your food tube and cause burning sensation near the chest or upper abdomen.
You just need to continue A PPI (proton pump
inhibitor) which will decrease the acid secretion and keep you symptom free. usually twice a day is enough. It can be taken just before the meal. Later you can reduce it to once a day but it depends upon your symptom. Its a chronic (almost life long) disease so in most cases patient have to continue it. BEST OF LUCK.