My [17/F] mother [43/F] has been telling my entire family I have anorexia when in reality it was healthy weight loss

About a year or so ago I hit my highest weight ever, about 235lbs (I'm 5'7" for reference) and decided to make a change to my lifestyle. I am now at a healthy weigh of around 135lbs, and am happier and more confident than I have ever been. I ate about 1500 calories a day pretty much consistently to achieve this weightloss, and have since stopped losing weight and am now trying to build muscle.
This is relevant because my mother, who is about the same height and has been morbidly obese (280ish lbs) my whole life has been telling my family that I lost weight because I'm anorexic. Though I was not the most confident at my highest weight, I have never restricted my calories excessively. I've told her this, and that my weight loss was healthy and achieved through proper diet and exercise, not starvation. She says that my perception is skewed due to the anorexia and that I don't eat enough.
TLDR: I lost around a hundred pounds over the past year or so in a healthy way. My mother keeps insisting that it wasn't healthy and instead that I'm anorexic. How can I get her to stop?


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