I think he is very ill and has been suffering from a serious disease for some time, so I am not surprised. I thought they said he had an early form of Alzheimer's disease.
It's better to stop when you are not healthy and unable to live up to peoples expectations.
I hope he finds some rest and that he will be less haunted. He never had an easy life.
I will always remember him as the great performer that he was.
Here are my Michael portraits...from 1988-1990
https://www.youtube.com/watch?v=58kKMUpawIE
love, Inge