History of chest pain with raises trop levels always presents with achy arms, since last night chest pains w/no achy arms how do i know if it's heart?

Almost...chest pain: 50 y/o says, History of chest pain ...since last night chest pain w/no achy arms how do I know if it's heart? This is the age at which almost every chest pain includes heart in the differential diagnosis. Best way to be sure see PCP/Cardiologist for EKG & other appropriate Labs/imaging/ Physical Exam.. Does one already know why their Trop is high? What about Cholesterol & other markers? See M.D.