How many Felix pouches does your cat eat in a day? My cat is a tiny little thing and she scoffs for England. She can easily polish off three pouches a day and is always badgering me for more. The vet doesn`t think she has an overactive thyroid (although he hasn`t done a blood test)
At least you get to sleep in a bed. I've not been in mine for months. The cats get the bed and I get the sofa (usually with Moonbeam curled up alongside me)!
In my house a growling cat means either:
(a) The big black cat from over the road is back in my living room again and my lot are trying to warn him off. (He totally ignores them, helps himself to some food and then goes upstairs to sleep on top of my wardrobe) ; or
(b) one of them has a dead mouse or bird clenched firmly in his teeth and is making it very clear than no other cat is allowed anywhere near it.