Welcome to HW
I just posted this topic recently, about episodes. Mine too can be abrupt, day to day like yours. Sometimes, mulitple times in one day. In fact my Bipolar mood chart has a section that asks how many times my mood changed for that day. You are not alone. It's so exhausting isn't it???? This can fall under rapid cycling, it may not sound like it, but from what I have read and know from others, that's generally what it is. Mixed states; something else that I experience and is common for bp's. Don't know if you've read about mixed states or not....
Sometimes, I can have the longer episodes too. That only seems to happen with the depressive states. My longest hmanic state was two weeks--that's what I can remember anyway. I may have had longer ones in the past (over a year ago or something). But I've definitely had the depression last for months.
If I can give you any advice...Be open with your pdoc. Always voice your concerns, questions about the illness and about the meds, always. I am glad to hear that you are reading about this. That has been one of the things that has always helped me. But I can totally relate to reading about the types of BP, and sometimes I say "wow, that's not like my symptoms at all....". For the most part though, it is what I am suffering with for sure. I don't question my dx at all. Keep in mind, I think even the professionals and researchers still don't know enough, or everything about bipolar.
Hope that helps, keep posting.