I'm very worried , doctor . I'm afraid that I'm very ill .   Why do you think so ?   Because I feel tired all the time , even when I wake up in the morning . I find it very difficult to do any work . I have no appetite .   How do you sleep ?   Very badly , doctor .   Are you worried about anything ?   Well , yes , I am . I'm worried about my work . I've just taken a new job . I earn a lot of money but it's difficult work . I'm always afraid of making a mistake . 