VISUALLY what do you consider fat?

What are the things that make you think that someone is fat?
I have been dealing with eating disorders for 5/6 years now and I don't even know what is fat and not fat anymore.

I'm not talking about BMI and weight, I am talking visually... What is fat? What is chubby? What is normal? I don't know anymore !!!
VISUALLY what do you consider fat?
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