Hello and welcome to HCM
can not rule out that chest pain is related to heart. Before I answer further I like to know about you age, family history, Height, weight, Diabetic status, Lipid profile
etc. because these adds up to Coronary heart Disease
In my personal opinion if you want to rule out Heart disease you have to go for EKG and TMT(Treadmill test or stress test
). If TMT came negative than you have no heart disease. And if it positive than you must do your Coronary Angiography
. But lot depends on history and other related factors.
Other cause for your pain may be muscular spasm, Cervical Sondylosis etc.