As pp mentioned, it’s happening up and down the country to parents with children who have ME/CFS and Long Covid, as there are no definitive bio medical markers to diagnose these conditions. A lot of doctors seem to psychologise any condition they can’t diagnose. ME/CFS has been psychologised for the past 50 years (and mainly affects women).
FII markers include parents pushing for second opinions or further investigations, so any parent who is considered a bit of a nuisance can be flagged up. If, for example, they don’t accept “your child is just anxious and doesn’t want to go to school” when the child can barely walk, but all blood tests are ok, the parents can be viewed suspiciously for questioning this diagnosis.
It also includes parents speaking on behalf of children or children looking to parents to speak for them, as is often the case for ME and Long Covid sufferers who are too fatigued to speak.
It shouldn’t be necessary but I think one of the best ways to avoid this is to always attend any medical appointments with the father of the child, or failing that, another male adult. Sadly, the whole institution is steeped in misogyny and ego.
Also, keep paper trails and familiarise yourself with NICE guidelines.