do I have an eating disorder?

I constantly change diets. From paleo to vegan to raw to paleo again. I'm obsessed with food and controlling input and output. I used to eat 800 calories a day but during university and now working I eat 1200. I have cheat meals twice a week. I'm trying to lose weight but its still not coming off. I'm 5;5 130 pounds. I want to be 115 pounds

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