We've tried high end wet food, raw chicken, eukanuba cat food. Eggs and more, but everything we've given her she throws it up. not all of it because she's not losing weight

I saw the raw diet here on the forums, maybe I'll start trying to mix up some of that and see how she does.

Is she overeating? One of mine will eat his portion plus the leftovers from the five other cats if I don't lock him in a seperate room during dinner time.

Also realize that anything can upset a cats stomach, much like humans. The only dry food that will keep all of mine not barfing is the cheap stuff. If you have been switching foods a lot, that could be part of the upset too.

I would rule out a hairball and any other medical issues and check portion sizes before trying another type of food.

Make sure she doesn't have worms. Did you give her the worm tablet? Worms damage your cat's intestine and makes it reject the food you give her.

How often is she getting sick? Is it daily after every meal?

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The little monsters 3