Weight loss in a short period of time, complaining about weight (even if at a healthy body weight), constantly worrying about their calorie intake and exercise, avoiding meals...sometimes after eating, they "have to go to the bathroom" immediately. These are just some. If you want, check here:
There are many diffirent signs & many diffirent disorders that seem alike, the best way to find out if you have one is to ask a professional/go to a doctor.
Oh no I know that I mean like randomly throwing up lol
..yes? Throwing up consistently after meals, anyway.