Bob's symptoms involve a greater level of autonomic nervous system activation. Bob has had symptoms for longer than Ray has had symptoms. Ray is likely to have more trouble sleeping than Bob, who is more likely to have appetite difficulties. Ray's symptoms are the result of a social stressor, not a natural stressor.
Ray because this stress isn't natural stress, so it won't affect your diet, unless you choose not to eat. Ray has social stress, bob has natural stress which can affect your appetite
