Thanks for providing more information.
I understand your concern.
As per your description,in my opinion you need to undergo EKG,Echocardiography and a clinical examination by a Cardiologist if you feel chest pain and shortness of breath.
Your symptoms shouldn't be ignored and further work up should be done to determine the underlying diagnosis.
Other potential differential diagnosis may include Gastroesophageal reflux disease,
You should try OTC Zantac as well.
If pain is severe then it's good to visit ER.
Hope this helps.
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