Is it normal when you have manic depression to sometimes get so mad that you black out & don't remember what you did or how you acted violently?

That might occur.: Looks like you are diagnosed with major depression. I wouldn't necessarily blame this behavior on bipolar disorder. I do encourage you to let your psychiatrist know so that you can be further assessed.

It's possible: It's possible to dissociate in your rage and not recall what has transpired. This sounds serious enough to warrant therapy and medication as well. Start by speaking to a psychiatrist or psychologist and go from there.