I know this is an age old topic of what to do about a kitten peeing where they shouldn't be, but I have a few twists that I haven't found addressed with other topics.
So, I have a little 5 month old kitten, seems to be the runt of the litter as she hasn't grown much. For the first couple months I had her she never had a mistake, everything was grand. The second I open the cage I put her in the litter box she did her thing and continued to do so. She loves to squeeze under the covers and sleep right next to me. I also have an 8 month old cat which has no problem doing his stuff in the box even before during and after the new kitten arriving.
About a month ago I would wake up to her walking on the pillow trying to get back under the covers. When I looked and sniffed around she left a small swimming pool on the bedding. Towards the winter months I had quite a few layers of bedding and nothing ever reached the mattress, and all of the layers could be washed. I was thinking an accident, ok fine. I washed everything and just as I had everything back on she left another swimming pool right smack in the middle of the bed. Note this was towards early evening, not in the middle of the night.
Kicked her out of the room for that night and into the utility closet with water food and a clean box. Let her out in the morning but when I got back from work the next day, within 3 minutes of me walking in the door she wakes up (on the couch), waddles over a few steps and pees right in front of me.
I'm in a very small house and I don't have many options for confinement except to lock her in the utility room with a litter box. I had two boxes, one I pulled out for the other cat. Tried that for a day or two. To test, I let her back in the bedroom and for a night she was fine. On the second night, she let loose, and I mean dang! the pee stain was about as big as she was! The other cat is big enough so if he jumps up on the bed, especially around the pillow area, I wake up. He was nowhere to be seen when this happened, so I think I can rule him out.
So, confinement continued. She had water, food and a box until I could schedule a vet visit to look into a possible infection. I couldn’t risk her being anywhere other than the utility room. The vet put her on Clavamox 0.4ml BID until it runs out. As of today she has been on this for 2 weeks.
Last weekend my parents came to visit so I had everything washed and kept the door closed. Since then I have kept the bedroom door closed to both cats. But she has started peeing on the couch. Note this is happening during antibiotic treatment. So now I’m thinking unless she has a very resistant infection there is nothing going on in that realm.
I should mention on the behavioral side, she doesn't play. She is most content just sitting on your lap or curled up somewhere. The other cat will race around the house when he's in the mood. She also has some very weird habits of doing the “cover your tracks” pawing motions as if she were in the litter box, after she eats. She also will lick or try to eat the cat litter rocks which are lying around the box. She does appear to be getting her adult teeth in so this may be a teething thing???
So I'm at my wits end. I can't be there 24/7 to watch her, and even then her activities seem to be at night. Depending on the day or week I sometimes have to be up very early and value my sleep. I can’t stay up and monitor her activities. I will be moving in 2 weeks and as much as I hate to say it, if this doesn't stop she probably won't be moving to the new house with me. Simply put I just can't afford to keep washing everything in the house every day of the week because of her. And I see little point or benefit in keeping her locked up like I previously described, plus while confined she cries and whines enough to drive anyone nuts.
Suggestions anyone?
Thanks
Jeremy

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Sounds like behavioral issues to me along with dominance issues. With all the information given I assume it's the older cat that's doing the peeing?

Are the two cats fighting?

Are either of them speutered? If not, speuter both of them!

Has the vet confirmed that the cat has an UTI? If so, then you may want to seek a 2nd opinion.

Hope some of this helps...

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No the whole posting was about the 5 month old peeing everywhere. Sorry if I didn’t make it clear. The two cats play sometimes the older cat gets a bit rough. If the kitten doesn’t fire off a warning cry I’ll usually break them up. But for the most part the play activities are the older cat doing some fairly interesting Judo type grab and roll maneuvers. Even a minute ago they were both on my lap and a bit of play was the older one gently gnawing one the kitten. Nothing aggressive.
Both the cats are altered. On the vet side they can run a urinalysis but I haven’t been able to get the kitten to pee in a pan or something where I can collect it. For a urine culture they would have to stick her and actually extract urine from the bladder in a sterile manner. The Clavamox should have taken care of any infection, and there would have been noticeable symptom changes within 3-5 days after starting her on the meds. So overall I’m thinking by now, it’s not a infection issue.

My kittens sometimes do that - it's a cry for attention...

As for the urine analysis, I have given up trying to get urine samples myself...I usually leave the cat with the vet overnight so that THEY can get the urine sample...

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If this is about attention, she is already jumping up on my lap the second I sit down and leaves when she wants to. So if this is an attention issue I can't do more than I already am.
I had thought about the overnight thing, but the prices are high enough so that would be a really last resort type of decision.