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No stress does not cause chest pain directly. Stress can cause increase blood pressure and increase sympathetic tone which can lead to vasoconstriction and other effects on the heart leading to acute coronary events like angina, myocardial infarction etc.
New onset chest pain in any one over 40 should be investigated with an EKG and in the ER.
I would suggest that you call help and go to the Emergency Room right away to have this evaluated and treated.
If you have any more queries, let me know.