Thank you for your responses as it helps me to better understand your situation. So it is highly unlikely that your wife has a Bipolar Disorder based on what you are describing as the mood swings do not shift this rapidly in a Bipolar Disorder. Typically an individual with a true Bipolar Disorder will have cycles of Mania/Hypomania (symptoms include anger, irritability, increased energy, grandiosity, racing thoughts, pressured speech, less need for sleep, impulsiveness, and recklessness) that last for a few days to a few weeks. Than the individual will either go into a Euthymic State (normal mood functioning) for an indeterminate amount of time or a Depressive Cycle for a few months. If the individual goes into a Depressive Cycle, which lasts for a few months, than once the cycle is over the individual will either go to a Euthymic state or a Mania/Hypomania Cycle. Nearly 75-85 percent of people with Bipolar Disorder will have less than 3 Mania/Hypomania Cycles in a 12 month period, and anyone who has 3 or more Mania/Hypomania cycles in a 12 month period are considered rapid cycling. From what you are describing though, it sounds like your wife’s mood symptoms are not consistent with a Bipolar Disorder.
This issue sounds more like a Borderline Personality Disorder (BPD), which result in much faster mood swings that are typically negative (e.g. depression, anxiety, and anger). Unfortunately if your wife will not be willing to see a psychiatrist and a psychologist about these mood swings, they will only continue and may even get worse. The only way to treat BPD is through psychotropic medications and the use of Dialectical Behavioral Therapy (DBT).
I hope this answers your questions and gives you some guidance on this issue. Please let me know if you have any questions or concerns as I am happy to assist and support you regarding this issue.
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