answer: Mr. Williams tells the doctor that he often gets tired and dozes off during meetings for two months. The doctor is going to give him a blood test.
documents: #Person1#: Hello, Doctor.
  #Person2#: Well, What seems to be the trouble, Mr. Williams?
  #Person1#: It's nothing serious actually, doctor. It's. . . Well, I get tired very easily recently, and I often doze off during meetings, office hours and sometimes even while I'm dining.
  #Person2#: How long has this been going on?
  #Person1#: About two months. I didn't pay much attention to it in the beginning, but you see, I got fired this morning. I dozed off while we were having an important meeting, right in front of the boss. I was very embarrassed.
  #Person2#: How was your appetite?
  #Person1#: Pretty good, I'd say.
  #Person2#: You haven't lost any weight, have you?
  #Person1#: No, doctor. I've actually put on two pounds.
  #Person2#: Unbutton your shirt, please.
  #Person1#: Well, doctor?
  #Person2#: You'll have to have some laboratory examinations to know for sure.
  #Person1#: What examinations?
  #Person2#: A blood test and during test. You can come back next week, say 4 pm to see the results.