If she had undiagnosed type 1, she would lose weight, because the body would be lacking the ability to put any energy into storage as fat, and short of eating 24/7/365, you are going to burn fat throughout the day, or at night when you are sleeping. Whether or not you lose weight with undiagnosed type 1 diabetes has literally nothing to do with what you eat, you WILL lose dramatic amounts of weight even on an amberlynn diet. It is a catastrophic failure of the endocrine system that is 100% lethal without modern medical intervention.
I doubt she would be having surgeries at her size. Too risky to put her under. If she did a 180 and started going to an actual doctor, she would most likely be put on metformin to curb insulin resistance, which she is guaranteed to have at that size regardless of whether she has full blown diabetes yet. She would be put on a very strict diet, and would be put into intensive therapy to straighten out that twisted mind of hers.Necrotic tissue would be de-bridled, and she would have to grit her teeth through the process.
Not that it will ever happen. If Amber possessed the mental faculty to get help, she wouldnt have let herself get to 600 elbees in the first place. The only time any of that will happen is when she is in the hospital after a major medical incident, at which point she will be both bedbound and on a slippery downward slope. Much like chance, she will suffer one infection and wound after another until she eventually croaks.
EDIT: holy fuckin engrish.