Nanny no wonder you're feeling hurt. Please don't feel guilty, we want to be GP's don't we, not unpaid and unappreciated baby sitters.
You did the right thing saying you couldn't have the children, and as he knows you've had a knee operation and your mobility is compromised, he doesn't need an explanation as the reason is self evident.
I hope you hear from him soon and that when you do it's because he's checking you're OK and not looking for a baby sitter.
Take care.
They're Back! Swifts zinging around!