I want to tell people I struggle with anorexia but am currently not thin enough to convince anyone how severe it's gotten
Why do you want to tell people about it now? Has something happened?
Because I'm so sick of dieting and I'm tired of starving myself always.
I'm sorry you're struggling so much with an eating disorder, and you shouldn't have to fight to convince people you have it. Anorexia shouldn't fit a certain image, many people have it and look different. It's good you're trying to bring more awareness to it.
I'm scared about how people see me now... I'm not thin enough and I don't want to start eating because I'm nervous to be re-diagnosed.
You know yourself best and you need to tell people about your problem. You should be open about how this is progressing for you.