Reptile & Amphibian Forums

I just brought my 12yo cat home from the vet because she has lost an extreme amount of weight in the last 3-4 months and is skin and bones. They ran stool, bloodwork and x-rays, checking for worms, Feline Lukemina, diabetes, hyperthyroid, etc. All came back negative. X-rays showed no masses/tumors.

Any ideas? My next step would be ultrasounds and biopsies (if they find something), leading to all sorts of invasive and expensive tests and procedures, some of which I'm not sure she would survive.

Is there something simple that we could be overlooking? She is eating and drinking well, no issues with her stool. Nothing out of the ordinary other than the weight loss. She has always eaten Whiskas, or Meow Mix. I put her on the Indoor Cat Meow Mix about 3 months ago, but as she eats well I cannot imagine that it could be causing this?

Thanks for any ideas. Oh, she will not (and has never) touch wet cat food or any "people food", only dry.

Thanks.

First of all, take her off of dry food and put her on cheap hamburger and bone meal.
Check the stool to see if it is formed and well digested, without any gas, to determine if she is digesting and absorbing nutrients. Check the urine for sugar and protein, to see if she is losing nutrients through the urine. Have the vet check the heartrate to determine an overactive thyroid. If she is consuming good quality food in sufficient quantity, digesting and absorbing the nutrients, not losing nutrients, and is not overactive, not burning excessive calories, she has to be maintaining or gaining weight. Check these areas.