What did the farmer suffer from? He suffered from ______ in his chest.

A farmer who lived in a small village suffered from a severe pain in his chest that never seemed to get any better. The doctor in the village had tried his best but had been unable to relieve his pain. The farmer finally decided that he would see a doctor in the nearest town. But as he was poor, he thought he first ought to find out what he would have to pay this doctor. He was told that a patient had to pay three pounds for the first visit and one pound for the second visit. The farmer thought about this for a long time, and then he decided to go and see the doctor in the town.
   As he came into the doctor’s consulting room, he said, "Good morning, doctor. Here I am again." The doctor was a little surprised. He asked him a few questions, examined his chest and then took the pound which the farmer insisted on giving him. Then the doctor said with a smile, "Well, sir. There’s nothing new. Please take the same medicine I gave you the first time you came to see me."
   Q11. What did the farmer suffer from?