MS and books - fantasy genre

[Wonderfulworld]

Ok for something totally off normal topics!
Has anyone else noticed that Harry Potter could be a metaphor for JK Rowling's grief for her Mum and her Mum's MS? Voldemort going away, gaining strength, attacking periodically (relapses), the Dementors taking all hope from the victims. All the metaphors for magic, power, control, betrayal from things that seemed like friends etc.

And for those who've read Mervyn Peake's Gormenghast, same thing? - I'm not sure what neurological illness Peake had, but I found myself wondering 3/4 of the way through the book if he had MS....
Peculiar. Or maybe that's just me!