Should I Look Into This?

Hi everyone, I'm new here. First of all not looking for a diagnosis! I know diagnoses can only be made by a professional and I'm not keen on asking for one here. Rather I'm asking if I should bring this up to a future psychiatrist/therapist appointment and if it sounds similar to your experiences.

I got a comment on an old YT comment I made about my experiences, and someone said it sounded like OSDD-1b, which got me thinking. I've had a range of dissociative experiences/moments throughout my life and I'm not sure if it's "run-of-the-mill" dissociation or indicative or a dissociative disorder. Not DID! OSDD seems more likely (or another disorder).

Beginning when I was a teenager, I've sort of had "voices" in my head. Not a hallucination, they came from "inside" and not an external sound. These voices spoke to me in the second person and were particularly cruel, usually criticising everything I did to the point I'd argue back to them. Sometimes they would narrate what I did too.

I've also had moments where I would be having a breakdown and I'd sort of, I dunno, turn it off for lack of a better word? The energy and emotion would rush out of me and I'd feel empty. Sometimes this accompanied a request like "stop crying".

When I was 18 I had a "delusion" I had an alter. This "alter" had a distinct personality and appearance and even gender identity that was different from mine, and would often talk to me in my head as well as "take over" sometimes. This separate voice subsided in a few months and hasn't resurfaced since.

I also experience derealisation and depersonalisation in general.

Does this sound like it could be a dissociative disorder? Or just, I dunno, normal.