this may be because of acidity
you can take
1. Tablet Meftal spas one tablet stat after food
2. Tablet Pantocid
40 mg before food once a day for 2-3 days.
And follow care advises given below.
Avoid food from outside, junk, fried, spicy fatty food
take home made light food like moong dal, Dalia, chapati
also tell me associated symptoms like vomiting
sensation, loose motion/ burning sensation in chest or any other symptoms are present or not? so that we can reach diagnosis