BP 2 also. I never get suicidal; strong self preservation impulse. But I get really depressed. I do a lot of the things you mention but I go more into the conceit with hypomania, interrupting people to explain my better ideas but not completing some sentences and completely skipping others so people have this blank look, confirming that they cannot keep up with my awesome intellect. At its worst, I think I am immortal but still know better than to tell others.