Hi
I am a long term poster, but had to change my username when the Heartbleed thing kicked off.
I am ridiculously upset and confused today and would really appreciate the views and opinions of the people on this board - between us all, we are definitely the experts 
Apologies in advance for the long post and ramblings -I can't even think straight today.
Basically, DD1 is 13 and has dx of AS, Dyspraxia and SPD . She got her dx when she was 8.
DD2 is now 9. When I initially 'compared' her to DD1, she seemed to be NT ie no real sensory issues, no problems with changes in routine and so on.
She has no problems with many things DD1 struggled with and is empathetic. So I kind of thought that the combination of those characteristics precluded ASD. Maybe I didn't want to see any problems.
However, I have had a few occassions over the years when I have wondered and worried a bit. For example, as she has got older, she is more and more upset by changes in environment eg if her room is tidied or rearranged. She won't throw anything away and salvages bits of paper, tags and other odds and ends from bins (DD1 used to do this). She is upset when we decorate and asked for samples of the old wallpaper;etc.
She is also becoming chronically disorganised and unable to remember and retain instructions.
My main concerns though, are that she is currently starting to have meltdowns, almost identical to the ones dd1 had at the same age. She completely loses control and this morning, she was hitting herself.
These have appeared over the past couple of months and increased in frequency. She is utterly unreachable during these episodes.
Also, when she started school 5 years ago, she became completely withdrawn and was virtually mute in class. She was always flagged as 'the quiet one' and she would refuse to speak to adults or look at them . I know this is an ASD flag, but I always saw it as her being incredibly shy.
This has improved over the years, but she is still extremely reluctant to talk to strangers and will become clingy and anxious.
She also suffers with extreme anxiety and has problems sleeping and has various phobias and, now, routines, she likes to follow.
Reading all of this back, I can see loads of ASD markers, but she also has so many characteristics which are kind of the opposite of ASD, IYKWIM?
I am also aware that, at almost 10, she is entering puberty.
Does anyone else have a child whose AS only become apparent as they got older?
I feel upset and stressed and just not sure what to do.
There is also guilt, because dd1 has taken up the bulk of my attention for years (she is HE) and I feel like I havent been noticing the signs and maybe DD2 just has a totally different AS presentation.
Thanks if you got this far. Any advice or opinions welcome. I am on my way out now, but will check back later.