Hello and welcome, Matsmum. You won't be getting any advice from me on running a marathon, 'cos I've never run one. Have run two half-marathons, and at the end of each I wondered how on earth people can go on and do the same amount again.
That's very very sad about your son. We see our children arrive; we don't expect to see them leave ahead of us. You say you have a large family, - how many sons and daughters have you?
As far as posh daughters and untidy sons are concerned, I think the inclinations of the husband / wife (if any) have also to be considered. I think my elder daughter takes after me in being not particularly tidy, and it is her husband who ensures that the house is looking spick-and-span.
I came home from London with a niggly sore throat. It can't seem to decide whether it's going to turn into something or not. I went for a short run yesterday and really didn't feel good, so today prescribed for myself an afternoon on the settee with a large glass of wine.
Me, I can't do more than a short run if starting before breakfast. However, a banana will keep me going for an hour or so.