Changed username so can't be linked to other posts as we (DSS Dad - my DP and I) are genuinely at a loss what to do.
Background: DSS (8) has diagnosed mental health issues and has resulted in 5 years of a very erratic co-parenting set up that I have been party to. Regular demands for more money, including paying rent on top of CMS, making regular false accusations including DP sexually abusing DSS and both of us physically abusing our DS who was months old. SS deemed it malicious but obviously traumatic. Court order in place, but very challenging to do as she refused to engage, spent years accusing DP of abuse despite clear evidence she physically and emotionally abused him.
Things have been more settled for past year or so, but seem to have really escalated over the past 2 months. Despite court ordered access (term time 5/14 to DP - he did want more but she changed her mind at start of final hearing, and 50-50 school holidays) she has been getting more and more erratic when she can't change plans to suit her arguing it isn't fair (eg. DSS is in half term this year with DP, was in hers last year, and DP requests to stick to the court order resulting in her becoming rather aggressive via email).
The issue: DSS has always been a little mardy about school. We find if we are firm, maintain a positive attitude aboit schools, consistency in homework/boundaries etc he goes to school just fine and is doing well and is on track. All homework since reception has been done at this house as his Mum will not do it with him. Few months ago his Mum raised issue if he has anxiety as always has a tummy ache/crying about going to school. DP replied saying we don't see this behaviour -but did see similar a few years ago and used a reward chart to motivate and it stopped. DP spoke to his class teacher at school. Appeared to be subject linked so spoke and worked with DSS on this and resilience (I'm a teacher). No further issues raised either by Mum who didn't respond to DP email or school. Mum got a job a support staff job at his school. Suddenly there appears to be an escalation in DSS teary/being poorly behaviour based on her observations in classroom and shes taken him to the GP on headteachers advice and he has educational anxiety. She was pushing for him to be diagnosed autistic (he definitely isn't) and is saying he needs extra support at school and has informed headteacher.
We are both really worried and its giving me a bad feeling in the pit of my stomach as it feels she may be projecting her own anxiety/mental health on DSS and giving him issues that aren't really there if that makes sense? We're scared that this will make him want to go to school less when with her, despite never having that problem when with us (DP only gets to do 3 school drop offs per fortnight as per court order) and is going to give DSS a complex rather than him displaying typical child behaviour (needs resilience building up- not labelling: COVID has made many students far more immature).
Sorry for the length of post -looking for advice on what to do/next steps. DSS hasnt conveyed same message as she alleges. He also says quite vocally he doesnt get tummy aches here only at his Mums and he doesn't know why. My gut says she is (possibly unintentionally) emotionally abusing him. We know we need to contact the school and find out if any truth in what she is saying and ask why DP had not been informed if so serious but what next as we do not see any of this behaviour at such a high level as she suggests!
Help us please!