I really don't think 2 months is much time for an serious eating disorder to start. It seems like you're just standing on the edges of a full blow eating disorder to start.
Now trust me, you really don't want to have to struggle with food all your life. It's not fun.
To be honest I don't really care how much you weight. No doctor who knows about eating disorder base their client's struggles on how much they weight. The numbers, weight loss/gain, and the obsession is cause by an underline issues, and emotions.
What is it that you're feeling when you starve yourself, or
count calories.
Saying you're feeling fat is doesn't tell the person how you're truly feeling. The word fat describes a look. How can you feel fat, it doesn't make sense.