I saw a childhood friend of mine yesterday who has (IMO) had body dysmorphia since she was about 11 years old.
She was average sized in high-school and went on "Nutrisystem."
Later in her life she went from eating no beef, to later eating no flesh at all including fish. That would be fine but she seems to barely eat anything now and looks emaciated.
When I saw her after we had chatted a bit (we usually chat on the phone), I asked her if she had lost more weight. She said she didn't think so.
When I had to leave, we hugged goodbye and it was like I was hugging a skeleton.