Yep, I relate. I have one who absolutely cannot stop eating until ALL the food is gone. When we had dry food, she used to open latched cupboards, chew holes in the bags, then gorge and throw up all over the house until someone stopped her. In the first six months we had her, she was free-fed, and she doubled her weight (7 to 14 pounds). After several years of strict control, she's back down around 10 pounds.
But she still begs for food constantly, and gets very upset if she's ignored, especially when there's Chinese takeout involved:
The only way to have a chance of reducing begging is by not giving in. I read somewhere that dogs will keep begging if they get food 1 out of 20 times...so I try to feed in those moments where the cat is NOT bugging me for food, just so she doesn't get the gratification.
And here's something bizarre that's recently happened. After supper, Assumpta gets a bedtime snack around 9PM. She used to bug us all evening, running into the kitchen whenever one of us moved. It all changed when we started watching CSI (this is so weird). We's shut off the TV and feed her when it ended at 9, and she started jumping up and running to the kitchen as soon as the TV went off...Okay, I can understand that (and it is sooooo funny to watch, the TV clicks off, and she jumps about three feet in the air and gallops out to the kitchen meowing at the top of her voice). But the other day, I was listening to the radio, and they were playing "Who Are You" by The Who (the show's theme song), and the next thing I know, Assumpta is sitting right next to me with her big eyes and kibble face on, waiting for me to feed her.
I'm sorry...but THAT really blew my mind. Talk about classical conditioning! I've also used the word "kibble" exclusively for food (and she will come running whenever she hears it, even as part of normal conversation (so if we're not feeding her, we have to use the phrase "The K Word" instead...also, she knows the difference between "Kibble" and "Jimmy Kimmel," which is fun for impressing guests)...but I've made that her "recall" word in case I ever have to track her down quickly.
But yes, she's food-obsessed, I just try to use it to my advantage when I can.