any place you go to, mental health or medical, should keep your records long term. i got as much as i could from my birth up until 2008 or so but had to contact each health authority, clinic, etc. i did not get all of them though. some make you pay for them, like my current psychiatrist.

you would have to request them or your therapist could. if they work in the same place you had treatment, they might be able to get them without a written consent to release the records. if not, you might need to provide your current therapist with a written consent to obtain them. i forget how that works.

i had an opposite experience where i saw a world renowned trauma therapist for maybe an hour who said i had NO trauma diagnosis. it was such a joke. i have been with my current psychiatrist now for 12 years and over that time have shared with her my symptoms/experiences and clearly have dissociative disorders related specifically to trauma. so, it is hard when people do not agree on what is going on. but for me, i did not have her tell me anything, i volunteered all of the information.

what a person is diagnosed with also depends on what the person diagnosing them sees. many people interpret symptoms in different ways. when i had a second opinion a few years ago and described my symptoms, the psychiatrist just said that i had traits of a lot of things but nothing 100% whereas some others would probably be quick to say i had a type of schizophrenia or something.

i think it also depends on what you feel is true for you diagnosis wise. it's important to be honest with your therapist. also remember that not all believe in DID, so that could be on your side if you really don't have it or aren't on the spectrum. a person who is well educated on trauma and dissociative disorders will be able to distinguish dissociative disorders/symptoms from other things. so, if a person isn't a specialist in those areas, it would be hard to get an accurate diagnosis..although on the same hand, some are too quick to diagnose too.

but bottom line is you need to be honest with your therapist so they can know what your past diagnoses were. you don't have to rehash your past therapy, just voice your concerns about it and be clear that you don't agree with the diagnosis you were given and want to make sure that you are being adequately and appropriately treated for what your struggles are.

i have had to flat out ask my psychiatrist what she thinks i have diagnosis wise, and that was hard to do. but it was important for me to know that we are on the same page or else it could just be wasted time for us both.