DID is a manifestation of certain types of PTSD, and many people with trauma experience some degree of dissociation (though usually it falls short of DID).

To oversimplify, dissociation of any kind including DID, is a survival mechanism at the point of trauma and at points which our brains perceive of as similarly threatening (even if they are not so dangerous).

Yes, some kids want to relate to it a bit too much, but in a way they do this as an escape from their (very different, but real nonetheless experience of pain). It remains a genuine diagnosis which has serious impacts on those who actually have it.

I'd imagine this is very disconcerting to have heard from your therapist, so try to seek out things which are soothing & grounding to you. Could be a friend or a hobby or pleasing scents or sounds.

Have known a few people who have it, many who like you are adjacent, and just a handful who find comfort in relating to it in slightly overimaginative ways.

Every one of them deserves empathy & support, regardless, and you do too.

never heard the term 'DID' before you mentioned it. quick google search says 1.5% of global population. symptoms sound like so many other disorders that I'd be pretty skeptical of labeling yourself unless an actual Psychiatrist thought it fit. best to seek help for your symptoms individually and get another opinion. Most treatments are the same benzodiazepine class of drugs that are highly addictive and hard to stop. Wish I could give you better advice but my experience with medical types has been the old saying, 'If all you have is a hammer, everything looks like a nail'. A cardio doc wanted to install a stent for a lack of blood flow in my hand. A lab tech running a test on me said it was most likely capillary constriction related to Raynaud's syndrome, which I am sure I have. I never went back to the cardio doc..

It's good you are being your own advocate since you know yourself better than anyone. Don't let google turn you into a hypochondriac over similar sounding symptoms.