Hi again, sophie13 !
I'm happy that your kitty seems to be back to normal !
I do not understand why they think she has kidney problems. Kidney problems are ONLY diagnosed by blood tests and urine tests. Did they test her ?
It is strange for a 1 1/2 year old cat to have kidney problems unless the cat eats or drinks something toxic. A defect in her kidneys? Again, unusual.
Watch her carefully: her eating, drinking, urine, faeces, activity level, strange behaviour.....look for anything unusual.
Can you find a Vet who ONLY treats cats - a specialized Vet ?
I tried with Google.....no luck. But, maybe you can ask people who work with/for animals.....maybe a rescue organization or a shelter. Here's one place I found: http://www.bawabali.com/contact/contact-us.html
Perhaps they know of a cat-only Vet.
Post back if there are changes - this section is for kittens, so the best forum to use is here: http://pets.ca/forum/forumdisplay.php?f=75
What's her name? Do you have any pictures of her ?