Thanks for using health care magic for posting your query.
I have gone through your given history in detail.
It depends a lot on your age. If you are in your 40s-50s it can be a serious cardiac condition and should not be missed. You shouldn't be embarrassed to visit the ER as ECG is the only way things can be confirmed. Moreover even if it is stress related, which can very wellbe, then as a doctor they are supposed to diagnose and relieve the pain for you.Think of taking a threadmill test to diagnose any stress related changes on the ECG.
The other possibility is that it can be a gastritis
and reflux disease. You should take a course of ranitidine
. You should avoid spicy food until then.
If it is stress related, do visit a psychiatrist
who can evaluate for depression
and start you on some drugs which will help in improving your mood.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
In future if you wish to contact me directly, you can use the below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.