Toni has been in a bad mood for two weeks,having no interest in anything,problems with sleep,and difficulty with concentrating.Toni also doesn't like doing activities that she used to find fun.Toni most likely has:

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Toni is experiencing symptoms that are consistent with major depression disorder, including low mood, loss of interest in activities, sleep disturbances, and difficulty with concentration. These symptoms have lasted for two weeks or more, which is one of the criteria for a diagnosis of major depression disorder. Seasonal affective disorder is a subtype of major depression disorder that occurs during the winter months, but there is no information in the scenario to suggest that Toni's symptoms are related to seasonal changes. Dysthymic disorder is a less severe but chronic form of depression, and cyclothymic disorder is a type of bipolar disorder characterized by mood swings. Neither of these diagnoses are consistent with Toni's symptoms.

Toni Has Been in a Bad Mood for Two Weeks,having