What Causes Chest Pain?

iam a man of 23 years, a month ago i swallowed some chewed chicken bones, and eventually started which faded after a week. the pain has started again and is the 5th day today, its like a stabbing pain..i am very confused again because i once had chest pains at the age of 19 which went untreated until it stopped after 4 months..i do not know whether its an old disease or it is caused by swallowing the chewed bones..help there..Aaron