Given the fact you are 17 and female, unless you have a known congenital heart defect then the chances are its not a heart attack
Fluttering / palpitations in the chest is usually secondary to a rhythm disturbance. It's quite likely hyperventilation
causing the rest of your symptoms + anxiety
Having said all this it would pay to have an ecg done to rule out something more serious, call an ambulance and they can check you out or go to the Emergency Department.