yeaaah i think thats exactly what i have. at some point in grade 6/7 i dont remember, i just started eating less for no reason. my appetite just went down and down. i was a little chubby back then, then over one summer break became quite skinny suddenly because of that, and have been since then. i dont have much appetite and have the as before described problem sometimes. thank you for probably diagnosing me lmao ive been wondering what this is.