My dad phoned earlier to say that he'd called an ambulance as mum had gone grey and was then slipping in and out of responsiveness (you could eventually get her to respond and then she'd drift off again). All he got was a community first responder who checked her over and said normally they'd get an ambulance to take her to A&E, but no ambulances and a 4 hour wait currently there, so he'd ask the OOH GP to come. Who rang, asked some questions and said there was no point in coming out 
This happened 9 months ago, and as today, she eventually came round again. But I feel so worried about them, and so guilty that I don't live close enough to just pop round when this sort of thing happens