Thank you for asking the query at DoctorSpring.
From the description of your symptoms the pain does NOT appear to be cardiac or heart related. I assume that there is NO loss of consciousness, profuse sweating, nausea or pain radiating to arms or neck with this pain.
However if the pain is persisting or if the pain increased with exertion you can get an EKG / ECG done, which will rule out any cardiac origin chest pain. Without an ECG we cannot be 100% sure (just by symptom analysis alone)
Hope this helps.
Please feel free to ask followup questions.