If she does have MBD, it can be almost completely reversed if it's not a severe case. If she has a very bad case of MBD, sometimes it will be impossible to completely reverse it. But, with proper UVB radiation and calcium supplementation, she should get better, but it may take awhile. I had noticed signs of my lizard having MBD, or at least the beginnings of MBD, but he seems perfectly fine now (and He's only had his
UVB bulb for 3 weeks or so.) If you think your girl has a severe case of MBD, you can take her to the vet to get liquid calcium, which works a lot better than dust. I had my lizard on liquid calcium for about a week, which would probably be a reason he's gotten so much better so quickly.