Thank you for the information.
Based on your description, you have burning sensation in your chest, which is there for a while, and it is not associated any other symptoms that makes it less likely related to heart. Additionally, you don't have any major risk factor for heart problems, and your age is also not supportive for heart attack. Considering all these things, this is most likely acid reflux/GERD, you can take OTC antacid or prilosec and see if you feel better. However, if you feel that your symptom is getting worse or not improving or you develop chest pain, you must consider ER visit for proper evaluation and EKG. Please let me know if you have any other question.