Hello J,

I know you said you don't want to rush him to the doctor but I do think a appointment with his primary might be in order. Chest pain in a teenager needs to be assessed!
If in fact the cause of the pain isn't anything physical, the doc might just bring up the topic of stress or anxiety as this is typically the only other reason for chest pains. Maybe you could even talk to the primary before the appointment and let him know your concerns.