Here are some lay guidelines that may help you determine the urgency.

http://www.webmd.com/hw/parenting_news/hw81707.asp

Was it definitely a nurse you spoke with? I've had a few med assistants attempt to triage my symptoms. If it was, your doctor has bigger problems than your health.

Does your health plan have a triage nurse line? Or the local hospital? Chest symptoms that have gotten worse are nothing to full around with. We have several nurses on the forum, maybe they have some suggestions.