HCDD-D is a medically unrecognized disorder, and mainly self indulgent but anyone can use it
Symptoms under cut
Extreme memory gaps and forgetfulness, crafting false memories or events in replacement
Horrible time management reverting to a couple weeks, years before they were born or non-existent dates
Lack of emotional response, misunderstanding social cues such as body language or sarcasm
Derealization, surroundings feel wrong or distorted or dream-like
Depersonalization, feeling detached from one's own body and often zoning out
Feeling no need for relationships, withdrawal from crowds or friend groups, and an often need for quiet with some sort of background noise, often the individual is a blend of anti and asocial
Extreme sensory issues, with sound, texture and sight, also feeling a constant need to touch almost anything new or having meltdowns when it upsets them or feels wrong
The individual holding this disorder is likely to hallucinate extremely real hallucinations, most commonly with both sound, voice and even feeling or scent, lasting their whole life, they will also have vivid imagery paired with this
The disorder usually overlaps with maladaptive daydreaming, hyperlexia, misophonia, tetrachromacy and less commonly, the eating disorder, pica
Despite disassociation, hatred//fear of social interactions and bad time management, the individual will have better cognitive processing when it comes to things such as mathematics, science, writing, creative arts and would have ingenious solutions to their own problems
One will also deal with heavy sexual and/or violent intrusive thoughts, commonly act on impulse and homi/regi/geno/suicidal ideation, often being amoral or immoral
The individual will have compulsive and complex lies, gaslight, manipulate and fool others in order to protect themselves, often going as far as to craft multiple personalities to stay in plain sight
The individual also struggles with severe panic, anxiety and paranoia
Individual often fails to maintain eye contact and doesn't know when it's their turn to speak
Random chronic headaches, stomach aches or urges to throw up, more internal temperature than external, this can cause (more likely) temporary paralyzation in the legs
Obsessive perfectionism, often lining up things in color, creative play, creative writing, picking out certain handwriting for certain subjects or materials, planning and structuring things out in their head to go their way through their methods, needing certain things to be certain scents, urges to wash their hands or deep clean something every few minutes especially when uncomfortable, creating intense but achievable ways to reach things often considered impossible, often bothered when something minor goes wrong
Whenever their gut feels something off they'll by instinct attempt to protect themselves and those around them like a parent or identify routes they can use to get to safety
Hypervigilance
The disorder is paired with echolalia and/or echopraxia
This disorder is not one you are usually born with though it can be, but it's usually one that is caused by long-term parentification or trauma typically before the age of 12
Hyperfixations will also occur lasting often from 1 week - 1 year+
Neurodivergency symbol... Except idk how to remove a background
Sleeping problems, most commonly insomnia or hypersomnia
This a disability that you can develop or be born with, it's mainly self indulgent, but Reader's disorder syndrome (RDS) is a MUS where reading or hearing about disabilities cause the reader to incorporate the symptoms of a disability into their everyday life to the point of having even others suspect they have that disorder, this is done unintentionally and those with RDS may not even realize they're doing so as it is completely out of their control.
