According to Lahoti, the symptoms of acidity may not always be frequent burps and a burning sensation in the stomach. "In children, for instance, if there is a recurring throat infection, it could be because of acidity because the reflux can go high up to the tonsillar region. Complaints of food being felt stuck in the chest region, or slight bleeding with vomiting can all be caused by acidity."

Taking antacids over the counter, doctors say, is all right, unless the problem starts hampering your daily life.

"Having acidity once in three-four weeks and then taking an antacid is Ok. But if it becomes a daily affair and starts hampering your routine, you should see a doctor," said gastroenterologist Rajni Mehta, who practises at a number of private hospitals in the national capital. "Adults who are on painkillers are vulnerable to frequent acidity problems."

"If you are in the 40-50 age bracket and develop fresh symptoms like loss of weight, loss of appetite, blood in vomit, black stools, fall in hamoglobin level - all of which we call red flags - one should see the doctor and go for investigations," Ajay Kumar said.

A recurring acidity problem, despite acid suppressants, can lead to vitamin deficiency. "Also, as WHO has stated, frequent acid reflux can be carcinogenic. Which means, if it remains uncorrected, frequent acidity can lead to cancer of the esophageal pipe," Lahoti pointed out.

Since in most cases acidity is lifestyle-related, the best way to avoid the problem is to take small, frequent meals, go for regular exercise, and avoid eating excess in one go, be it fried food, ice cream or candies. "And ultimately, try and observe what causes the problem for you, and avoid that," Lahoti added.

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