I have quit meds several times to see if I am better off without them. But I have not been truly stable in about 25 years; head fog doesn't go away even if I stop meds and alcohol for over a year (I have done this a couple of times). I almost invariably go into a depressive episode when I stop meds or maybe it just seems that way because without meds I am about 10:1 depressed versus hypomanic (I am type II). I have done the opposite of what Shazerac suggests - I attribute my mood swings to circumstances and stop meds.

The closest I get to stable is a low key sulk with occasional spikes to arrogant jackass without implausible delusions. The persistent head fog still persists, though.

Does anyone who considers themselves stable have head fog they can't shake?

Is "stability" feeling like you did before your first major episode? Or is it just accepting the "sweet spot" that is as close to it as they are able to get you?