Thanks all. I've taken everything on board.
I've got a parent who struggles to read and write (highly likely to be dyslexia but was never diagnosed)
Two autistic DS' (one diagnosed and the other is about to start on the pathway)
DS1 with the ASD diagnosis is also due to be assessed for ADHD when he turns 6.
I have an autistic DSS who school also suspects may have dyspraxia.
I have inattentive ADHD myself and DH has what's formerly known as aspergers.. so we're a very wonky bunch!
With all that in mind, a part of me felt that DD having some form of neurodivergence was inevitable.. but I do agree I need to relax and stop fretting atleast for the time being.
Somebody asked about her memory.. it's brilliant. She does not forget a thing. She reminds me with complete clarity about things that happened ages ago.
To the PP who asked what helped with DS1's progress with speech etc. A few things:
Nursery we feel was a vital step as it put him in social situations he'd otherwise avoid like the plague. He was always happy being on his own and as we had got to know his cues so well and used PECS cards he never really had any need to 'speak' iykwim? Being around other kids definitely helped to bring it out of him.
DD (who was born when he was 15m) was an early talker and would chat his head off non stop so he had that intensive interaction too.
The kids tv program 'Yaka dee' was brilliant and it was using their "you say..." leading technique that broadened his vocabulary. I remember one day trying it and couldn't believe my ears when he repeated the word back to me. Well that was it I was off.... "DS, You say... apples" (insert 101 other words) and he repeated every one. Mate, I squealed like a banshee. It was like a switch flipped actually. If your LO doesn't already watch it then I definitely reccomend it.
Then came the scripting. He'd hear phrases on the telly or on his tablet and memorise them then use them in context.
I believe he taught himself to read before he could speak, as strange as that sounds. Due to the speech delay we focused largely on encouraging communication and didn't really encourage him to read or recognise words. I discovered he could read when he started reading out words from the tv adverts. As above with the speech, I was flabbergasted.
I can see now that I hugely underestimated him when he was non verbal and he actually understood so, so much more than I gave him credit for.
When he was diagnosed I pleaded with his paediatrician to tell me how 'severe' she thought he was as they'd stop labelling in terms of severity by then but she did say he was 'severely affected' which is pretty much the same thing isn't it?
We didn't think he'd ever speak to be honest and were starting to come to terms with that.
He used to bang his head on the floor all of the time and have the most god awful meltdowns, we couldn't take him anywhere as it was just too much for him but he has come on so much now. He'll be 6 in January.
He still has meltdowns but alot less frequently as he can communicate his needs now.
Don't lose hope, your LO is still so young (and I do remember the feelings of hopelessness) and has so much time to progress. One of my good friends who doesn't have any diagnosed conditions didn't start to talk until 3.5
Hang in there x