I used to have this problem but then my treatment provider explained to me that its pretty normal for people with any mental disorder or not to feel like they have said too much, regret saying something or have the "I should have said this.." I should have told them about that....its just part of being a human being with a logical thinking mind where we as human being can use reasoning, logic, emotions, memories to look at something and evaluate it on many different mindsets....

example look at the clouds and one person who is having a great day may see cheerful shapes. someone who is in the mindset of being angry, depressed, having a bad day will interpret what they see a different way maybe what one person thinks is a turtle another person will think the turtle shape is a monster and another may think its something graphic to do with some sort of violence to their self or others...

then you put this normal way of being human with a thinking mind in a person with DID what do you have....many different personalities functioning with their own way of being their own job, purpose reason for being created...its like a whole slew of people laying on the lawn looking at the clouds each in their own mind set seeing what pertains to them.

put this model in a therapy session and its like having a family therapy session... in a normal situation you have many family members with their own mind set, some members may think this is a bunch of crap Im not going to say anything to a therapist, you have the family member who is really open to the process and willing to talk about anything and you have family members who hold resentments if they think something like thats private not for telling other people....

put that in with someone who has DID theres alters who are open to therapy, alters who are quiet, alters who are angry... (how ever the internal system of alters is made up) so its natural to have alters who will talk about anything with the treatment provider in therapy and alters who resent that happening.

the key is that through out this completely normal thing that happens due the species we are is whether those alters who resent the openness during therapy are being a danger to their self or those who are participating in the therapy process by talking/sharing information ..

when ever it happened that my internal system of alters were not being safe with me or others my treatment provider would hospitalize so that we were in a safe setting and kept from harming myself or others as punishment for talking in therapy.

my suggestion talk with your treatment provider let them know that there are some that are against or questioning what is being talked about. they can help you set up a plan where you are all safe through this process called therapy.