She aims to put on a stone and a half in a year.

Each week Lizzie posts part of her diary describing how she is finding the challenge.

To sponsor Lizzie visit www.justgiving.com/lizziegrimaldi.

Diary entry: 22nd January

Well I'm confounded. Or as the nurse put it - "you look shell-shocked". I was so convinced I had gained a decent amount that I couldn't understand it when the scales said exactly the same as last week. To the last gram. Bugger bugger bugger.

Clinutren it is then.

Diary entry: 21st January

So. Christa's piece in the Telegraph. Not exactly as I would have wished - for a start she didn't put a link to the weblog nor did she mention Hannah. Then there was a typo which put my weight at 6 stone 11 (despite the headline of "...when I hit 5 stone...") - as H said, if that was the case, we (and the hospice) would be laughing. Still, you can't control the press and it could have been worse. We've had a response already - interest from BBC radio and Grazia magazine (I'll probably pass on the former and do the latter) not to mention several new sponsors.

I got myself into a silly tizz this morning, partly over the article and partly over B. I woke up in the middle of the night panicking that he could be lying in a pool of blood in the flat. How would I know? So stomach had gone into turmoil and I had to spurn Hannah's request to take her over to Bicester when there is nothing I would have liked to do more. She must think I'm a really ungrateful, self-centred cow. And she'd probably be right. I need to make the most of this time - weigh-day tomorrow and I'm anticipating a decent hike-up. I've made real headway this week and can feel and see the improvement. Getting bloody sick of cheese sandwiches though.

Diary entry: 20th January

Better day today but not sure why. Maybe the food is finally getting through to the right places. Did a hell of a lot more of the Times crossword which must be a good sign. Spent most of the day (in between eating) in the barn doing 'Art Therapy' with Hannah. Made a tree frog instead of an anger monster and very therapeutic it was too.