In the context of Dissociative Identity Disorder (DID), which it sounds like you might be referring to with the term "alters," it is essential to remember that each alter is a distinct personality state with its own experiences, emotions, and memories. Sharing trauma or past experiences is not always a straightforward process and can vary from person to person.
Some alters may be more open to discussing their trauma, while others may be hesitant or resistant. Flashbacks can be triggered by various factors and can lead to the surfacing of past memories and emotions. It's crucial to approach this situation with sensitivity and respect for the autonomy and boundaries of each alter.
If an alter is not ready or comfortable talking about their trauma, it is generally best to respect their wishes and not force the issue. Pushing for disclosure can potentially be retraumatizing and damaging to the overall healing process.
However, if you find that alters are experiencing distress due to unresolved trauma or past events, it may be beneficial to work with a qualified mental health professional who has experience in treating DID or trauma-related disorders. Therapists who specialize in dissociation and trauma can help provide a safe environment for alters to process their experiences if and when they are ready to do so.
In conclusion, the decision to share trauma or past experiences should be left to the individual alters when they feel safe and comfortable doing so. Support, patience, and professional guidance can be essential elements in facilitating healing and communication within the system.