Unstable self esteem

I have no fixed self-image, the way I see myself seems to change on an almost hourly basis. First I think I'm the worst person on the planet, a moron, evil, etc. Hours later I think, "I'm actually pretty great! I'm super smart, super hot, and the kindest person I know!" Then soon after I think, "meh, I'm okay I guess" (probably closest to the truth.) What's that about? Am I alone in this? I'm tapering off Abilify, I have no idea if that's related. Is this a bipolar thing at all?

I have my bad days where I think life sucks and I'm not a good person. Then my days when I feel good and I think well of myself. Sometimes it has to do with my mood, that's for sure. But it just depends, because at times my mood is stable and I feel like this too. How is your mood right now?