Hi whenlifehappens
I'm an Aussie so my remarks are from my own understanding of how things work here.
I'm not sure what country you're posting from and I'm not a parent or a medical professional, but it seems weird to me that you could be reported for one mistake?
It was obviously wrong to do what you did, and I know you see that - but I'm sure you're doing all you can to rectify your problem.
If there's no more to the story, I'm baffled really.
I'd consider it very very unlikely indeed you'd lose your son unless there was a prior pattern of doing things like this, or you were arrested and breathalysed for dangerous driving or something.
D