Thanks for the replies! Don't worry, I know it is going to take her a long time to bounce back - especially in her case. The poor darling was in a bad way when I got her. I just wanted some feedback to know I am on the right track!
When I first got her, she could barely chew hay her teeth were so sharp. She also had severe gastric ulcers and corns on her front feet!
Over the last couple of months I have sorted out all these problems, plus I have had a couple of bowen therapy sessions done, and she is a much happier horse for it! :)
She is being fed 4kg weightlifter, 500g speedi-beet, probiotics, canola oil, apple cider vinegar, slippery elm bark powder, and a multi vitamin + B1 supplement - this is split into two feeds a day. She is also out 24/7, and has free choice lucerne hay and access to a wheaten hay round bale (though she never touches this!!)
In the last month her appetite has really picked up.
I've included a photo of her rump (showing her birdcatcher spots - this shows how shiny her coat is), and a shot of her from the other side taken yesterday.