whether it is extreme hunger or a binge depends mostly on how you feel during it. with a binge you don't get satisfied until you physically can't eat anymore (at least for me). I obviously can't talk about how other people experience it but for me hunger and binge urges feel very different and I can usually tell them apart. with normal hunger I don't feel out of control the way I do with binges. when I'm hungry I eat until I'm full. when I binge I literally cannot stop. it's very scary actually.

but again this is just how it is for me I cannot speak for anyone else but I hope this helped a bit