Dd is almost 10, Y5 at school, and is on the assessment pathway for autism but has low support needs. She isn't obviously autistic unless you know her really well, so it's blurring the lines between what is 'normal' Y5 girl behaviour and what might potentially her having social difficulties due to autism.
She's always loved school, great academically and very popular with lots of friends, no problems at all right the way up until the summer. She started Y5 in September and has a teacher who is brand new to the school and this is his first ever class teacher job. She hasn't warmed to him at all, which isn't helped by the fact she loved her teacher last year so much. I've been telling her to give him a chance to settle in and things might improve.
The problem we're having is that she's coming home almost every day in tears because of different things that have been happening. Mainly friendship issues and there's seems to be a different fall-out every day. It's usually other people falling out and she somehow gets involved, or her friends aren't including her and playing with other people, or she's sitting alone at lunch and no one wants to be her partner in PE. She doesn't feel supported by her teacher at all, who often speaks to the others involved and tells her it's all been a misunderstanding when she's upset. She's worried about school all the time now and says she hates it, which is the complete opposite of our school experience from reception to y4. She came home today again in tears and said she feels like she's never good enough for anyone 
I know that Y5 onwards is when friend dynamics start to change and fall-outs happen, but it's like a switch has been flipped and it's gone from 0-100 in the space of one summer.
Is this completely normal for this age group, or does it sound like there may be other issues at play here? DH wants to contact the school but I'm unsure as I don't know if it's just usual behaviour or if she's in need of more support.
Can anyone help?