Usually it's not a matter of emotions, but physiological symptoms. My dr asked me things like "do you have any energy?" "Any enthusiasm in things you enjoy?" "Do you have trouble sleeping?" "Feelings of guilt?" "Unusual goings on in the bathroom?" things like that.
take her for a walk in the woods, mall, paintball, bike ride,... She is likely just unhappy with things she wants not working out show her an alternative to medication/sitting around thinking. :-)
There's no doctor in your town?! What the hell!<br />
Ahem. Diagnosing without an expert is never fun, but the internet has plenty of tools that can help. What is worrying you about her behaviour?