Possible Clues:

• Heartache suffered by girl over a soldier
• It would make an American soldier hearty, but not hale, to have a girl around
• For this to be again around the North might make one sore at heart
• Pain again developed round neck initially
• A sharp pain in the heart
• Attack of painful spasms
• The girl is heartsick about the American soldier
• That's a heartfelt complaint
• Condition marked by chest pains
• Pain from diseased heart