I have an intermittent chest pain that has lasted me a long time. In addition I have numbness in the left arm and a fast heartbeat. It happens mainly at night.
You're young , so you a heart attack less likely, unless, of course , to use drugs . But there are many conditions that can cause symptoms similar to your age , some are quite serious . In any case you have to go to a doctor examine you , it's the only way to know what is causing it and to make sure you 'll be fine.