So glad to hear your DD is doing well, it's always good to hear positive stories!
We don't know yet. His genetic tests haven't come back yet. No family history though, they're more of the opinion that it was a virus, but explained that we may never know.
Sadly, though we found out about it now, it had progressed to actual heart failure, affecting his other organs, everything was shutting down. We're under Manchester Children's - it's not our most local one but it's not too far away, and I'm finding out more about how good it is for this type of thing, so I guess we're lucky in that regard. He does seem to be responding quite well to the medication atm (he's on enalipril, l carnatine and furosemide, and he's starting beta blockers in the morning), which is great news, it's just all so terrifying.
It's horrible enough having one child with it - I don't know how anyone could get through having three with it, how awful :( That would be nice, if you wouldn't mind
Thanks very much for your response - this whole thing is very daunting right now