- Jun 24, 2001
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My sister is manic-depressive and I hear it runs in the family. I know that I go through manic periods a couple times a year but I don't feel crushing depression other times. I really don't feel much of anything. Even though I respond to emotional movies and such (not a psychopath), I'm probably the least emotional person I know. Could that also be a symptom of MD or bipolar disorder?