You certainly can't be anorexic at that weight. A normal BMI for 5'7" is 121-153# being 18.5-24.9 body mass index. My DD is 22 and 5'9" and she's 145#. She's very curvy.
Give yourself credit for all you have released up to this point. What matters in weight loss is getting to a normal BMI so you reduce the visceral fat around your organs. That fat causes inflammation and leads to heart disease, high blood pressure, etc.
Watch the documentary film on YouTube "THE MEN WHO MADE US FAT", as it is very interesting.
| current weight: 172.4