About: http://webisa.webdatacommons.org/84824727

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In your case, i think it is a very high possibility that this is just anxiety, however, there is a condition known as mitral valve prolapse which can cause chest discomfort and palpitations.
http://www.w3.org/ns/prov#wasQuotedFrom	doctorslounge.com