Yes, it is possible for an OSDD-1b (Otherwise Specified Dissociative Disorder - Type 1b) system to have a DID (Dissociative Identity Disorder) subsystem. Both OSDD-1b and DID are part of the broader category of Dissociative Disorders, and they share similarities in terms of dissociative symptoms and the presence of multiple identities or parts.
In OSDD-1b, there is a significant dissociative experience, similar to DID, but with some differences. OSDD-1b is characterized by the presence of two or more distinct personality states or identity states that control the person's behavior, but they may not have complete amnesia between these states as is typically seen in DID. In OSDD-1b, there can be significant co-consciousness, meaning the different parts are more aware of each other's presence and experiences.
On the other hand, in DID, there is a more pronounced amnesia between identity states, which can lead to significant memory gaps and a lack of awareness of other parts.
The way these disorders manifest can vary from person to person, and there can be significant overlap between OSDD-1b and DID. It is not uncommon for someone to experience a range of dissociative symptoms that may fall into different diagnostic categories, such as having an OSDD-1b system that also includes DID-like features.
The diagnosis and understanding of dissociative disorders can be complex, and it is best done by a qualified mental health professional with experience in this area. If you are experiencing symptoms or have concerns about your mental health, I encourage you to reach out to a mental health professional for an accurate assessment and appropriate support. They can help you understand your experiences better and develop a treatment plan tailored to your needs.