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Bipolar disorder – known in the past as manic depression – is a condition that affects your moods, which can swing from one extreme to another.
Our Health A-Z contains more information on Bipolar disorder.
Premenstrual syndrome (PMS) is the name given to the physical, psychological and behavioural symptoms that can occur in the two weeks before a woman's monthly period.
Our Health A-Z contains more information on Premenstrual tension syndrome.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.