Hello I appreciate your concern I need more information to tell you exactly what is bothering you If you can answer my these questions I will try to help you in best possible way Your age, sex or history of any metabolic disease are you having gas heart rate or palpitations This can be caused by heart or Lung disease as well as acid reflux In my opinion you should immediately consult your doctor to rule.out heart disease if you have any risk factors for heart or lung disease like family history of heart disease or habit of smoking and alcohol with high cholesterol Another possibility is Acid reflux which can be corrected very easily with certain life style modifications and dietary restrictions Hope this answers your question follow up questions are most welcome Best wishes