Cat's and Eating

I am not really sure but I think my cat has issues with food. Yes it sounds crazy but I am totally serious.

I have 2 cats, there is Emmit and Miss Kitty, that is who this is about. Miss Kitty is a 15 lb eating machine and she gets fatter all the time.
In the middle of the night Sunday/Monday they ran out of food in their bowls. So when I got up a 5 am Monday morning I fill the bowls like normal. Now, Miss Kitty who acts like the world is going to end if she can see the bottom, ran up and just literally ate until she barfed. I couldn't believe it, as if they haven't run out of food before. I was making my lunch and I heard this awful noise coming from the pantry. When I went in there I found Miss Kitty next to 2 piles of half eaten cat food. Amazing! She has always had this fear of not having enough food and I often wonder if it started back when she was a kitten at the pet store. So now I am at a loss of what to do about this and figure it is time for some sort of food control.