My pdoc didnt tell me but he suspected i was BP2 for quite a while. It wasnt until i went full hypo when starting an AP for the first time(with no mood stabilizer) that he then said it was definitive. He probably shouldnt have done that but heh whatever...
I didnt do anything real extreme during that time but i was incredibly productive at work, had pretty grandious plans, and did spend quite a bit too. Not a ton, but a lot.