I tend to be a little hypo basically all of the time, then every 4-6 weeks it will swing a little higher enough to affect my sleep. I also every 4-6 weeks go thru a slight depression, not crippling. I also notice I'm kinda seasonal as well. January and February a bit more depressed, then really hypo in spring. Things sometimes go haywire June thru August, been on med leave two years these times in the past few years, one of them I was rapid cycling. So I really don't know if there is stability. I think the closest I will get is how I am in my first two sentences. I take meds by the way and consistently have to tweek them.