From what I've seen and heard this morning, it appears that her condition stems largely from her bipolar disorder and the medication she's been prescribed to keep that stable and under control.
Various doctors have commented (without having the benefit of examining her of course) that one of the known side-effects of this course of treatment can, in some patients, appear to make them look/sound like they're drunk which, feasibly, is why Kerry sounded the way she did on the show yesterday.
Fern Britton commented on a media story she'd read which seemed to indicate Kerry had drunk an entire bottle of champagne prior to a photoshoot, implying that she was possibly abusing alcohol. Today she said she had been advised by someone who had been present at the time that the media story had been misleading and that the bottle had, in fact, been shared amongst EIGHT people. I guess the story wouldn't have sounded quite as salacious if it had been written that way :sigh:
Essentially, as was said earlier on the programme, she's a very 'ordinary' girl with 4 children, a diagnosed medical mental condition which is being treated with prescribed drugs and a career which puts her in the public eye - admittedly a career which she's chosen and courted.
In my personal view that doesn't mean she's any less entitled to support and sympathy than anyone, say, on here who has problems - be they food addiction, alcohol/drug abuse or emotional/psychological issues.
