To think this isn't usual behaviour for a 15 year old?

[LostKitty2]

Bit worried about DD wondering if it could be more like autism? DD was seen under the child mental health service where she got a course of CBT and was discharged and they deemed her to have Obsessive Compulsive behaviours. She was actually put on medication for a bit as well but it didn't really agree with her. Anxiety and depression is relevant too.

These last couple of months there's been this major fixation on names? It's not a case of typical teenage girl deciding what to name future babies but she is constantly on baby name websites and it's not about finding names she likes she is trying to match up names. She says it keeps her awake at night as she can't relax until she has a few names "matching" in her head and by matching it's not really what anyone else would see as matching but all makes sense in her head. Even when she is pointing out how they "match" I can't get a grasp on it. She will talk about syllables but one name will have 3 and the other 1 so it is always baffling me and she gets annoyed trying to explain it as I really don't see it or understand it.

She does it for a lot of things. She will find jobs with salaries and plan a whole life around that ensuring she can afford shopping petrol dog walkers child care etc. the list is endless and she will think of absolutely everything down to council tax and these are not things I've really ever spoken to her about. She can spend hours doing that and spend a whole afternoon and by the end she will feel relief and can relax. It's why they said it's a compulsion issue as she has to do the compulsion but admits it isn't a usual OCD case but didn't offer anything else.

I feel for her and she isn't getting to live a normal life. She will get invited out by friends but she doesn't want to because she wants to match the names (current thing as I've said) and I will ask if she wants to or if she feels she has to and she says it's both but she does enjoy it as it obviously brings her relief.

Any idea if anyone here has heard of this before or could maybe suggest a different website/forum I could ask on?

Is there anything else in her behaviour that makes you think she could be autistic? The behaviour you describe seems more like intrusive/obsessive thoughts to me - which you say she was diagnosed with when she was younger anyway.

That kind of hyperfocus can be from ADHD (it is in my dc).
I was similar at her age, except I was designing stable yards and thinking up names for horses. Pricing everything up, from hoofpicks to the actual bricks&mortar. I don't have an ADHD diagnosis but since dc was diagnosed I'm pretty sure I have it.

I'm too scared of heights to even ride now btw!

Yes this is more common with ADHD. I get like this - so lost in a project or interest I can kill hours. My DD has ASD but isn’t like me at all. She can focus and unfocus normally.

It does sound like ASD behaviour, especially as it makes sense in her head but she can't explain it to you.
A Danish study conducted in 2014, later published in PLOS ONE, reported, “people with autism are twice as likely to receive a diagnosis of OCD and people with OCD are four times as likely to also have autism.”
I'm like this, I write lists of places to travel to, what to see, what time of year to go, when I want to have gone by etc etc - I rewrite them over and over, have books full. I have a dc with ASD. Hyperfocus rather than flow is not unusual with ASD.

you could look up the Monotropism Questionnaire which measures how much people have narrow interests
https://monotropism.org/2023/mq/

Note that this is NOT a diagnosis for autism but can show if someone has some autism-like traits.

It sounds to me more OCD than autism or ADHD. I have autistic family members and work with children with various diagnoses and needs, but I'm not an expert by any means.

I would suggest looking at the National Autistic Society to see if your DD ticks any more boxes. www.autism.org.uk/advice-and-guidance/what-is-autism

She could of course have some autistic tendencies but not enough for a diagnosis.