Hi I understand your concern. Yes chest pain is one of the symptoms of anxiety but we can stamp it only after heart testing. You have done all testing and came to normal so we can say it is due to psychological stress and anxiety. some natural ways to treat anxiety and daily stress are exercise meditation deep breathing and hyperventilation proper sleep stress free activity do pleasurable activity music and hobbies discuss with friends see all thing with different angle positive outlook confidence all this will help you to counter daily stress medicines i have treat so many patient with mild dose of benzodiazapine and mild dose of SSRI,in SSRI mild dose of escitalopram and paroxetine like drug is very useful But before taking this medicines you have to consult psychiatrist and evaluate your self,after proper evaluation he will guide you further Get well soon I hope i have answered your query. Still have query then feel free to ask. Thank you.