I'm sorry to hear you are beset with so many health problems Dinahmo. I agree with you that treatment in France is very very good.
But there are downsides, which at least two GPs in the UK have mentioned to me in discussions about the French health service.
There can be such a thing as over testing which wastes money and time. I remember living in France in my 40s and being sent to cardiology, gastroenterology and ENT. All tests were inconclusive, and when gynaecology was next offered, I turned it down because it was all getting excessive. It's like going yo see the GP for your bad knee, and leaving the surgery with a list of procedures to be done on your other body parts plus a suitcase of medicines!