No such thing a s 'sick of hearing' Lois.
It's like reading 'family news' on here.
Glad he's walking well and has a good appetite--sounds like that should stand him in good stead!
I'm not surprised he was depressed--my ambition through all of this has been to 'stay out of hospital as in-patient'!--which I've been lucky, so far, to have managed.
Hope he's home to you soon,
Love Brenda x