Warning Signs Of Eating Disorders Has Anyone On Here Ever Been Anorexic? Or Has Known Someone With Anorexia?

Has anyone on here ever been anorexic? Or has known someone with anorexia? - warning signs of eating disorders

I'm doing a project for the course and I have health issues.

How fast you lose, or the person weight?
What were the signs of eating disorders in development?
And how to avoid eating disorders happen?

Thank you.