Answer

Hi Larry Your cat's symptoms are still very typical of hyperthyroidism, and she's of an appropriate age for this condition. http://www.vetmed.wsu.edu/clientED/hyperthyroidism.aspx    Sometimes cats with hyperthyroidism can have normal blood test results. I think it's worth chatting to your vet again about this, perhaps repeat the blood test and possibly even a trial of medication for this condition.   Kidney disease can also cause vomiting, diarrhea, weight loss and poor coat condition, as well as ulcers in the mouth. You're doing the right thing with your diet, but cats with kidney disease may also benefit from anabolic steroids, and vitamins, particularly B vitamins. Again, speak to your vet as he's the one who has examined your cat.    Thirdly, cats being very territorial beings, can become quite upset by a change in environment, leading to behavioral changes such as vocalisation and inappropriate urination. Feliway is a pheromone which can relax cats in a new environment, you can read more about it here:    http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=1061 I think it's worth getting in touch with your vet again, he's done the right thing with the tests and the diet, and further investigate the thyroid issue and whether or not the Feliway may help. All the best with your elderly lady. I'm sure you and your vet can work together to get on top of these annoying symptoms. Rosie

Expert:	Dr Rosie Brown
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Answered:	9/5/2008

Cat Veterinarian

16 years experience in small animal practice.