So worried about constant adrenaline surges. They make my chest tight. Is heart attack likely from these surges?

Surges. Well, those surges definitely aren't helping to prevent you from getting a heart attack. What are your other co-morbities? Are you diabetic? Do you have high cholesterol? Do you smoke? Does heart disease run in your family? Do you already have coronary artery disease? If you answer yes to all of these, I would definitely say yes.