Burning sensation in the chest especially in the center of the chest is typical of gastric acidity and/or Gastroesophageal reflux disease.
Breathing issues need to be evaluated further.
No tests needed for GERD. The diagnosis is a clinical one.
Next Steps
Take plenty of fluids and add fresh fruits and vegetables salads in diet
Health Tips
Consult a physician personally and get yourself examined.
Alternately, You can consult me directly anytime on Practo.