It does sound as if Onyx could have an infection. I hope she gets better soon.

My 18 month old calico, Kiki, will be nawtee from time to time and pee on the bed or some towels. She was a bit stressed when we first got our other cat, Charlie, and started doing it then. That stopped after the first month or so.

A couple of times we put it down to her being lazy, she spends most of the day on the bed and can't always make it outside, especially if it's raining! It's been a good few months since she last did it though.

My auntie has a problem with her 19 year old female which has started over the last few months. She found a herbal spray in the petshop which helped to put her cat off, but at that age it can't always be helped!