Is this anorexia?

Ive been trying to lose weight for about a year now. Went down from 200 to 180. As of recently I've been a little worried because when I get on the scale it has been going up. I don't like it and I'm not to the point of being obsessed with my weight, but I've been freaking out about the weight gain. There are times my stomach will growl and tell me it's hungry but I ignore it or drink water to try and make it go away. Most days I only eat a snack and even then I worry a little that it will be too much. Other days I'll eat normally and hate myself for it. Is this anorexia or am I over thinking it?