My son was taken ill on holiday earlier this year, his bill for 2 weeks intensive care and a medical transfer home with a Dr and nurse in attendance, was huge, more than the cost of a small house, so I would always urge people to make sure they have full insurance and take the details with you. DIL had to produce her details whilst in a very emotional state in order for son to get treatment.The insurance company were helpful, and having the right details to hand at such a time did help.
SIL flew home last year after a fall with broken pelvis, and got the A&E Consultant to give her a fit to fly cert, he just wanted to see that she could weight bear enough to transfer from seat to wheelchair.
Hope it did not spoil your holiday too much OP.