How to regain control over eating habits?

Lately, I have been eating a lot more than I usually do.
It is not an extreme amount, but very often enough to make my stomach hurt.
Thing is, lately I have hated eating too. I have not wanted to eat but have felt unable to stop eating.

Now add a few months and you have where I am at: I do not fit into my clothes, and my body does not feel like mine, anymore.
I cannot stop eating all these foods I do not want to eat (chocolate, sugary foods, calorie-dense protein, etc).

I feel like I cannot control what I eat. yes I know that I can technically. Any tips on how to get back to my normal eating routine? (And back into my clothes?)