Hi! I recently found out that I'm very likely OSDD. My therapist stated that he doesn't think I'm distinct enough for a DID diagnosis, which I guess he's right as I still feel like they're all parts of me (and I'm not used to using "we" to call myself... yet?). I'm also not aware of any amnesia for full switching (twice and those only lasted for like less than an hour and I'm at contralling front again, if you know what I mean lol), so I guess I might be OSDD 1a and 1b.
The thing is, that makes us difficult to tell who is who, unless someone being relatively distinct speaks inside my headspace then I can tell by the tone or the contex (there's a "demon" and a "gaurdian angel"), and my little self doesn't show her preference difference except for that one time of short period of full switch. We don't really have our own names other than the name that this person has been living with. What else can we do to try to find out who are blended in co front/co con?
Also, how do we tell if one is DID but almost always co front/co con, or if that's OSDD 1b? Does OSDD 1b basically means DID/OSDD 1a but always co front/co con?
Figuring out who's who is something that generally gets easier with practice, but some things you can do is finding or writing a list of questions you can look over when you're blurry. These questions would be things like preferences, interests, age, pronouns, appearance, etc, whatever might be helpful for you. It's okay to not know the answers to the questions, but even just going with what seems sort of right can be helpful. You could also try looking through your system list to see who fits you best. And maybe if this isn't working because you aren't distinct enough, if you want to try to become more distinct, you could try things like finding names and separate interests. But as a side note, it's okay not to know who you are, you don't always have to know, and learning to be okay with sitting in the blurriness can be helpful.
OSDD-1b is DID but without amnesia. DID with rare complete switching is called partial-DID.
We used to think our host was permanently frontstuck and we could only co-front with him, until we found out we're monoconscious. That means we share a consciousness, so when we switch, we feel ourselves become the new fronter, rather than it feeling like someone is taking control of your body and the last fronter going into the innerworld or going unconscious. Although if you are able to do possession, as in you feel like another headmate is taking some or full control of the body from you, then you wouldn't be monoconscious, and you would always just be co-front in your case, and may have amnesia but you may only be able to tell after a full switch (which it sounds like you've experienced).
It does sound like you have OSDD-1a because your headmates aren't that distinct and they feel like parts of you, and you have some amnesia. Remember you aren't always aware of amnesia, and even if you do only have a small amount, it could still be enough to qualify for an OSDD-1a diagnosis.