Phasing in and out of Singleton mode

I keep getting feelings of being in and out of feeling like another "entity" is there.

Even though 2 more have popped up (Yellow and Red)

I phase in and out of believing myself.

Especially when I say extremely accurate things and can recall information that seemingly comes from nowhere.

The flashbacks have been coming by much less.

I still get the feeling that someone else is speaking for me sometimes, but for the most part I've been feeling pretty normal.

Does anyone else go through this?

Yes, particularly when we first discovered our system. We'd make some headway in discovery, then someone would try to cover it all up again, then we'd make a bit more headway (either same or different topic) and same would happen. It bounced like that for months before we could finally accumulate memory of enough instances to pull ourselves out of the worst denial/hiding phase.
DID doesn't like to be discovered, remember that. It wants to hide so everything can appear 'normal' on the outside.