I have before- at the infamous VHI Ladies Mini Marathon. She barged her way through to the starting barriers when it was near the start time. She was a lot 'healthier' looking then tbh- very tall (well I'm a munchkin! LOL!) but definitely not overly skinny- I'd have described her as strong and athletic looking.
But she appears to have changed in the last few years- she looks to have got a little leaner, but she's lost any muscle definition she had then. And her overall appearance is very haggard compared to then. But again I'm only going on her images through her 'iPhone lens' so who knows what she really looks like now..
Other peoples pics/stories don't lie though...