Goodness, what a star your OH is!! Do hope you are feeling better soon. Having had two bad falls (involving my animals) lately, I know how stiff and bruised it leaves you. Arnica tablets and the gel helped me, worth a try.
I, too, worry about what will happen if I am really ill and cannot milk the goats etc. Fortunately, I have always managed to drag myself to feed the animals even when ill up to now. I remember once after lots of tests, the doctor saying I may need to go in hosptal - I looked at him in horror - it was mid winter and lots of animals to see to ......and I said "no way!"!!
My OH can feed the animals, but he does not milk, so goodness knows what I would do, as there are no other goat keepers nearby ....although one of the older farmers who can hand milk would do in an emergency (if he is still able to lower himself to milk a goat that is!!)