Indigestion or heartattack i am having a burning sensation in my throat, chest pain under my left breast, my neck hurts

You : You should get medical help. If this type of discomfort lasts more than about 20 minutes, most physicians that i know would advise calling 911. Only a physician or good health practitioner can sort this out. These symptoms could represent a heart attack or other serious potentially life threatening emergencies. Or they could represent indigestion, acid reflux, gallbladder, or even orthopedic problems. You need a good history and appropriate medical tests from a good health care practitioner. And this could represent an emergency.