welcome to health care magic,
as per the description of your clininical data, your problem is more pointing towards GERD
(gastro esophageal reflux disese).
to prevent the recurrence of the problem i advise you the following precautions
1.eat the small quantities of meals by dividing into mini meals
2.avoid eating spicy foods, junk foods
3.avoid alcohol and smoking
4.keep extra height behind your nesck before going to bed
even if you follow these precautions , you may have the symptoms ,so i advise you to continue the antacid
if the problem still persisits consult a gatroenterologist.
surgical procedures are also available for this problem , you can discuss with your treating doctor.