Another reassuring voice here- and this is from someone who has actually had a fair amount of SS involvement over a child.
My eldest had one of those often misdiagnosed conditions which meant an actual paediatrician consultant thought there was something fishy about us, either that we had caused her mysterious symptoms by some kind of physical abuse or that she was traumatised by sexual abuse and making her physical pain up to cope with it.
At a later stage her school got very defensive when we complained about the lack of reasonable adjustment to our disabled child and reported us to Social Services not once, but several times.
Do you know what never happened? A Social Worker swooping down out of nowhere and taking dd away.
They visited. We offered cups of tea. They talked to us. They listened to us. We explained.
Now that is a very high level of SS involvement due to an ongoing problem and repeated malicious reports. It still didn't result in anyone being taken away,
At one point (before this other stuff happened) we took dd, then about 2, to A & E with a serious head injury: she was unconscious for hours. The next day the Health Visitor rang to check we were all ok and knew how to look after her. She asked what had happened (accident on a slide) and I explained.
Again, that was the level of involvement. Of course they were to some extent checking up on us too- and letting us know they were checking up- but for them it was routine: children have accidents.