No it is extremely rare for a 19 year old to have a heart attack....
There are a number of reasons that you could have chest pain...
Have you had history of anxiety disorder or panic attacks?
History of asthma.
You have pain now?
Do you have sharp pain, dull pain, burning sensation, other?
Do you have pain with taking a deep breath ?
Do you have cough? Fever ?
Any medical problem history ? Do you take any medicines ?
Do you have trouble with indigestion / heartburn/ reflux?
These may offer clues as to your cause
Let me know what details may be helpful
I will get back with you
If my answer has been helpful and to your satisfaction then please remember to leave positive feedback
Thank you and Best Regards,
Anthony Bray MD