I was running a half marathon, but using it as part of a longer (slow) training run, so not struggling or bothered about my time. Running with a friend.
With about 5 miles to go we came across a woman staggering all over the road. I spoke to her, offered an energy gel, which she said she'd just had, walked with her for a bit. Suggested she stopped for a moment, but she said she was determined to finish as she was doing it for charity, her dad in whose memory she was running, would be disappointed in her.
I told her he'd be proud she tried and she could finish next time. Dad would want her to be safe etc. Still she kept trying. By this point I'm holding her hand and arm just so she didn't fall and hit her head. Then she did collapse and we sat at the side of the road. Someone from a house nearby brought her water. Then she lost consciousness, but I could rouse her ny helping her sit up. This happened a few times.
By this point someone from her own club had arrived and my friend was wanting to continue. I checked with her friend he was going to stay with her, which he was, so we carried on with our run. At the time I thought I'd tell the nearest marshal help was needed, but we didn't see one for ages.
I feel bad, but what should I have done? Stayed with them? Asked the nearby house to call an ambulance? I honestly don't know if she needed that.