Polyfragmented describes the structure of a dissociated person. The structure can change a lot through time, this is why PF is not seen as a diagnosis possibility. Because it does not matter from a therapy point of view if you are PF or not, what matters is "how to make you feel better?".
I might have been seen as PF in the sense of, some of my alters used to be hundreds of similar, small alters in a trenchcoat, all functionning together like a school of fish or a swarm of birds, using one collective name. Of course, this is one possibility among many to experience being PF. Other PF persons experience it differently.
Identity confusion is not synonymous with being PF. One can experience identity confusion and be a singlet, one can be PF and never experience identity confusion. There might be a link between the two but it is not somthing that happens all the time. I have experienced similar confusion with "Zami" in the past, especially when they fully realized they were one alter in a system, not an independant being, and it messed with their head for a while. I do agree it is a very unpleasant experience. It has nothing to do with having this or that diagnosis, and it does NOT invalidate your diagnosis.
When the inner structure of the system reorganizes, it can also lead to confusion, time for things to settle down. The system is always moving and reorganizing depending on what you need as a whole on a daily basis. The first times you become aware of it is always a huge confusion. After a while, in my own system, when it was "reorganization time" I would see a huge "work in progress" road sign inside instead of the blank and confusion of the beginning. It helps feelin less panicky.
Knowing yourself takes time. Also, not all systems who look like they know, ALWAYS know. Once I grew used to the reorganizations and reshufflings I stopped posting about "I am confused" and just waited for things to settle before posting "okay, new system map!" so the "confusion" stage no longer appears in my journey thread. Because you cannot see it, does not mean it's not here.
It's okay to never know exactly 100% of your system. You do your best, work with who you see right now, and it's already good enough.
Also seriously, OSDD just because of identity confusion? That's not how it works. From what I understand, it's DID as long as you have enough dissociation so that a big enough part of your system is percieved as "not me". If you don't know where most of your system is, well that's DID from how I understand things, because in OSDD it's "okay, me-1, me-2, me-3, me-4... oh, me-5, havent seen me-5 in a long time, hello buddy-me!" Also, amnesia that are more than the usual forgtfulness of human brain, that's DID too.
So, my advice?
Have a cup of tea or hot cocoa, sit, breathe. And ask your system to put up a "work in progress" roadsign when things are being re-shuffled so that it's less confusing for you.