Dispatched to male with chest pain. Pt c/o substernal chest pain that started suddenly 2 hours ago while working horses in the pasture. Pt states pain gets worse with exertion and is unrelieved by rest. Pt describes the pain as a dull, squeezing sensation that radiates to his neck, left arm and jaw. Pt states pain is 8/10, states took 2 of his friends nitroglycerin pills without relief. Pt also c/o nausea, lightheadedness, diaphoresis, denies vomiting, LOC or previous event like this.