For me stable means the mood swings aren't totally insane and frequent. For example, before I stablilized this time I would be fine one minute, then absolutely furious or really irritable and then either crazy happy, totally depressed or fine the next. When the rapid cycling is much less frequent and I'm not spending days totally depressed and then days manic--I consider myself stable. I still get the mood swings at times but they aren't as frequent or drastic.

I actually am not entirely sure what the criteria is for a diagnosis of BP2 vs. BP1 but I would think you could ask to be reevaluated.