Eating disorder?

I’m 15 and I currently weigh 118 pounds and I have since the beginning of March, my weight has never really been consistent last month I weighed 110. I’ve noticed however a change in my eating patterns I don’t eat breakfast I never have but now I also don’t eat lunch and I only eat a snack for dinner, I’m usually hungry but my mind just tells me not to eat anything. When I was around 12-13 I struggled with a diagnosed eating disorder and it was really hard for me to get back to a normal diet again, I don’t want to fall down that path again but I just wanna be skinny and I don’t see how else I can do that without just not eating a lot of food.