LOL - that could be!
In spite of all my speculation about height, weight, etc. I haven't lost sight of the tragedy of this poor girl's situation. While the extreme weight loss is a tragedy in itself, it's obviously just a side effect of a very bad home life. I had a friend in high school who was being raised by her mentally retarded mother and elderly grandmother. It was a very tough childhood for her, and she didn't come out of it very well. It was a difficult life for all three of them. I pray this situation turns out better.
Ain't that the truth.
It sounds like the mother was growing progressively more mentally ill. Praying that the tragedy ends here and doesn't grow worse and that all involved are healed.