I read somewhere that she had serious bruising on her hand which suggested leukemia.
Considering she was vaxxed to kingdom come, no pun intended, some blood clotting disorder, blood cancer could be on the table.
I was thinking dementia and failure to thrive.
But considering how close her passing was to Markle making that threat in her podcast about not signing an NDA and being able to say anything she wanted...
Well, considering how much the House of Windsor has to hide, I could see that shot across the royal bow by Markle finishing off Liz.