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A：Well, good morning, Tom. I haven't seen you for a long time.  

B：I'd been feeling pretty well until just a few days ago.  

A：What seems to be the trouble now?  

B：I feel run down, tired. I've been having headaches almost every day. And I'm not getting as much sleep as usually do.  

A：Have you been eating properly? Eating the right kind of food is important for your health, you know.  

B：Well, I haven't been eating well, I guess. I usually only have enough time to grab a sandwich and a cup of coffee for lunch.  

A：And what about dinner?  

B：Sometimes I'm too tired to eat anything at all.  

A：That's not good. You don't have a well-balanced diet. Have you been taking vitamin pills? 

B：I don't like to take any medicine at all without talking it over with a doctor first.