That goes far beyond my limited knowledge (even if I wanted to guess). It don't really sound like bipolar. manic and depressive periods are supposed to be longer, not snapping in seconds, I think.
But you see, you need careful evaluation and treatment.

By the way, I think you should say each and every of your discomforts to your husband. No need to expect for a positive reaction, but you don't want him to tell you later "why you didin't tell me?", about the incidents with your kids, for instance. He has both right and duty to be invested with the magnitude of the problem.
You don't ahve to get angry becasue you are not asking him something, just informing him.
And you shoudl never be ashamed, it's not your fault.

Understand?

Come one, keep it up!