Hi, Thanks for writing in. The symptoms that you are describing can occur in a variety of situations and need to be interpreted with caution keeping in mind the relevant past history. What you are experiencing is known as palpitations which can occur due to stress, anxiety, or panic; dehydration; lots of caffeine, chocolate, smoking or alcohol; prior heart attack; mitral valve prolapse; anemia and acid reflux. Since the belching has also increased, it could be suggestive of acid reflux. I would suggest the following: a. Take tablet Prevacid OTC once a day 1 hour before meals and see if it helps b. Avoid alcohol, coffee, smoking c. Drink plenty of water ( about 2-3 litres in a day) d. Eat small meals at regular intervals e. Have an early dinner f. Try and destress. Breathing exercises and yoga should help. g. However, if you have history of heart disease, please see your physician asap. Hope this helps.