I don't trust human nature not to somehow abuse this. As happens frequently.
Whether I trust the NHS is a tough one for me. My mum went into a hospital at age 41 with a minor ailment, and deteriorated and died whilst in there. A different time. I didn't really get any answers for it. Do I think the NHS were negligent? Possibly, possibly not. I simply don't know...because they never engaged with me to explain how a 41 year old person can die in a hospital bed of 'cot death' (or it's adult equivalent).
A lot will have changed since then. But I want to have as little to do with the NHS and NHS hospitals as I possibly can. They've been underfunded almost to death. So how can they be expected to provide a gold standard service.
You've extricated far more out of me than I really wanted to. I don't like the wheeling and dealing that I've read about in regard to this App thus far. I don't download hardly any apps unless absolutely necessary.
But I totally accept that I'm probably already exposed through my use of FB and other online services.