A patient came to see the doctor. He was coughing badly. The doctor said he didn't like the patient's cough and asked him to take off his shirt. He wanted to know how long the patient had had his cough. The doctor asked if the patient took much exercises. The patient said that he didn't do it regulary and explained that he hadn't come about his cough. He said his feet hurt every time he walked. He had had this pain for 2 weeks. Then he understood that he had had new shoes for 2 weeks too.