Tigger maybe got a kidney cancers or a thyroid cancers cause the medication she's on could affect her kidneys and the vet isn't sure if something's happening in her thyroid cause of the whole thing of her wanting to eat all the time and cause i researched the medication Tigger's on i know it can affect her kidneys, plus the vet literally said it could affect her kidneys its not just willowtigger using Vet Google willowtigger getting into a meltdown now