I wouldn't necessarily call them up phases. It's more of a "i feel like I can handle right now" and be okay. Not happy or sad, just okay. I told my T the other day that even when I'm in the period of being "okay", there's still no light the end of the tunnel. There isn't a lot of hope.
When I go downhill it becomes I can't deal with anything and I'm upset, hurt, angry, irritated etc. My thoughts here turn into I really don't know if all this is worth it, what's the point of living?
I haven't seen my pdoc in a while and I think he's aware of my rollercoaster experience, but I wasn't having that issue when I last saw him (I was in a couple week phase where I was okay and could handle things for a while).