Well , good morning , Tom . I haven't seen you for a long time .   I'd been feeling pretty well until just a few days ago .   What seems to be the trouble now ?   I feel run down , tired . I've been having headaches almost every day . And I'm not getting as much sleep as I usually do .   Have you been eating properly ? Eating the right kind of food is important for your health , you know .   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 . 