Hey ((((((((breakdown))))))))))))

There is a bipolar forum, but here's what I found on this website, which hopefully helps:

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Bipolar disorder, also known by its older name “manic depression,” is a mental disorder that is characterized by constantly changing moods. A person with bipolar disorder experiences alternating “highs” (what clinicians call “mania“) and “lows” (also known as depression). Both the manic and depressive periods can be brief, from just a few hours to a few days, or longer, lasting up to several weeks or even months. The periods of mania and depression range from person to person — many people may only experience very brief periods of these intense moods, and may not even be aware that they have bipolar disorder.

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From http://psychcentral.com/disorders/bipolar/

OR http://psychcentral.com/disorders/sx20.htm

I have heard that bipolar can have a stronger genetic component than some mental illnesses, but it is not 100% by any means. There are also different kinds, and you may not fulfil all the criteria, which is pretty normal.

I'm sorry your day took such a nose-dive. That's always the worst feeling.