It’s possible that Yuca simply doesn’t enjoy puppies. And that’s NORMAL and perfectly okay! Puppies are annoying. Your best bet is to put a LOT of attention on working Coco’s brain more. A tired puppy is a good puppy, and the BEST way is to work their brain. This would be obedience training, beyond basic sit/stay/down. I know group classes aren’t really a “thing” right now, but I’d look into classes through Denise Fenzi’s dog sport academy: https://www.fenzidogsportsacademy.com/
Maybe work Yuca while you’re at it. It’s a good way to keep her engaged, and working them together can help.
Hello,
If you don’t understand the findings of the ultrasound it is best to have your vet explain them to you along with how they correlate to your cats clinical signs and examination findings. Only your vet can provide all of this information. In some cases they can also do an ultrasound guided aspirate to help with the diagnosis. If you can afford it a CT scan is also helpful. If you cannot afford it trek them and ask for help within your budget. Lastly for a lot of cats with these issues medical management can help.
I hope this helps. I wish I could offer more advice. If you are still feeling confused and lost in what to do find a feline specialist or get a second opinion. Good luck