Thanks for your question on Health Care Magic.
I can understand your situation and problem.
We should first rule out cardiac cause for your symptoms because heart diseases often present with similar symptoms.
So get done ecg and 2d echo.
If both are normal, than possibility of
stress and
anxiety related symptoms is more.
Stress causes laxity of gastroesophageal sphincter. And because of this the acid of the stomach tends to come up in the
esophagus and cause the symptoms of
chest tightness, pain etc.
So start
proton pump inhibitors. Avoid stress and tension. Be relax and calm. Avoid hot and spicy food. Drink plenty of fluids orally.
Don't worry, you will be alright. Milk is useful, so you can drink cold milk.
Hope I have solved your query.
Wish you good health. Thanks.