Hiii I admire you for positive outlook. I appreciate that you are physically active. Some natural ways to treat anxiety and daily stress are Execrcise 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. Heart attack is not come in hereditary, it depends upon several things like weight, body mass index, lipid profile, coronary functions etc. Without all this nobody can predict chance of heart attack. Visit near by hospital and go for cardiac profile test. It is a kind of routine check up. everyone has to do yearly to rule out risk. so Consult doctor. Thank you. get well soon thank you