Im suffering from frequent burping from last 1month. Usually it starts everyday at 7pm and stays fir 2 to 3 hours. I had gastritis(bloating issue) in the past(1 year ago) and went for colonoscopy and endoscopy.  doc said everything normal after these tests. From last 1month i am on good diet and had stopped taking spicy and gassy foods except 1tea in the morning. Im also taking yogurt at night and probiotics(vitagen) every morning. But none of these are helping my frequent burping. Btw i usually eat rice 3 times a day. But none of these r helping me. Could you kindly advise. Thank you.