Do you really want to know? It's bc it knows that you are fat. weight doesn't matter; it's fat that needs to be lost and all you lost was water and muscle.
Your brain has been told your whole life what a person's body is supposed to look like...and you aren't there and likely never will be, but you aren't supposed to be fat. 5lbs of body fat is normal, not 45lbs and 30lbs of visceral fat (around your organs).
All this fat got there bc you overeat. If you don't have much body fat, I guarantee that you have 25+lbs of visceral fat and that's the one that kills.
You overeat bc sugar, etc. is disabling your hunger off switch. It's not your fault that you and I were taught that sugar was safe or even food.
Quit sugar, HFCS, honey, nectar, juice, molasses, maple syrup and white flour products (most breads, crackers and pastas) for a month and see what happens.
Your body dysmorphia will evaporate like mine did.
"Fat Chance..." by Dr. Robert Lustig M.D.