I had considered this. Further evidence: I have an atypical reaction to coffee. I get sleepy, then really calm. I react to very small doses and don't seem to build resistance (except to the anti-tiredness property). This is not unusual for manics and ADD folk. Both my parents drink coffee right before going to bed, to sleep better. (I don't, normally. Sleep quality goes way up, but caffeine also disrupts it, so memory suffers.)

But going with "alright, I'm bipolar" is just a label. I've gone through enough of those already.

As far as I know, there's no good bipolar treatment. Lithium might be useful for more major cases, but my general mood is fairly stable as is. Inspired by Seth Roberts, I experimented with morning faces, movement and sunlight. Light therapy seems to stabilize my depression (though it's too early to tell; winter is coming). The other two do nothing.

Besides the stuff I already listened, I'm not aware of any other promising treatment. I have a fairly low opinion of therapists, so I haven't made a great effort to check them out. I studied all plausible methods though, often with neat successes, but unfortunately only for different problems.

(Don't take this as negative dismissal. It's just that so far I haven't been successful down this road. Right now, I suspect that working on the level of thought or mood is useless as that's not were the issue is. I'm trying to escalate the problem now to get a better picture of what exactly isn't working, so I'm actively seeking out boredom, pain, guilt and so on. That's certainly an atypical approach. I don't know if it is successful or sane, but when you can't find a bug, it always helps to have more data about what input causes it break...)