I feel chest burns and abnormal heartbeat after smoking. Is it a heart disease?

Hello,

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Yes, you should get one ECG (electrocardiogram) done from the local doctor and you may upload here as well if you need it. Regarding your current symptoms, likely possibility is of gastritis and reflux disease. You should avoid fatty, oily and spicy diet. Have some walk after having food instead of taking rest. Have multiple small meals instead of heavy meals. Have regular sleep habits and avoid stress. Lots of green leafy vegetables, fruits. Avoid smoking and gradually cut down your alcohol intake as well and both are known to cause gastritis. You should get prescribed tablet Pan DSR (Pantoprazole and Domperidone) 40 mg or Esomeprazole Domperidone combination before breakfast once a day for two weeks. If not adequately relieved, then you should add syrup Sucral O (Sucralfate and Oxetacaine) or Gelusil two teaspoons three times a day for a week.