Were your episodes longer or shorter? How long or short?
Longer, it seems. Though I'm pretty sure it varied.

Did you have mini episodes and large ones?
If by "mini" you mean lasing about a week and a half to two weeks, then yes. If by longer you mean rapid cycling, then yes.

Was it mostly depression or mostly (hypo)manic?
It was back and forth. A lot of mixed episodes, dysphoric manias and agitated depression.

Did you cycle within a given episode or was it pretty solidly up or down?
I'm not quite sure I understand this question. I was mixed a lot in my teens and early, mid-twenties.

Was it a really bad episodes that made you seek treatment, or the gradual realization?
Gradual realization. In reality, I never thought I'd get help because I had no insurance and no money, but then my cousin told me about a free clinic and they helped me get on meds and insurance.

What effect did your undiagnosed/untreated bipolar have on your family, friends, work life, school life, etc?
Gradually ruined some friendships, garnered a bad reputation, got kicked out of college and nearly drank myself to death by 22.

Were you on antidepressants? If so, did they make you manic or did they simply poop out on you?
I wasn't on an AD until I went to the free clinic. Citalopram. It zonked me out a bit for a long while. Or maybe it was the co-medicine, Abilify, that did it... I don't know for sure.