Hi... Welcome to healthcare magic. As you mentioned you have problem of chest pain that may be because of reflux problem or other reasons. Mention a type of pain with aggravating factor.. Avoid fatty foods, spicy food, alcohol drinking, coffee and chocolate... Eat small amount of meal and chew properly. Avoid lying down immeadiate after eating.. Elevate your head during sleeping time by use a two cushion... Detail history and investigation give exact idea about problems.. Consult a gastroenterologist for further treatment. I hope this will help. Get well soon.. Thank you.