If you're unable to clean the gunk on your cat's eyes easily with a warm compress or a wipe, it's best to take the animal to the vet, as you can hurt him and cause infections if you're not careful or if you rub his eyes with force.
Yes, you should see your doctor. Sounds like you have a couple of things going on (sorry to hear this). Your urinary tract infection may not have fully been treated,...
Normal discharge is not painful. When the vagina pH is off or you have an infection, the vagina and the skin around it can get irritated, which likely will lead...
Take it very slowly! Anoint different items with each other's scent and place them in different rooms while the cats are visually and audibly blocked from one another. Feed them...
Yes, you should, especially if you have a cat with abbreviated nasal passages, as their noses are more pushed-in, which results in a lot of drainage from the eyes.
Be aware that cats do feel stressed when overcrowded. Be realistic about how much space there is in the home, and don't add another cat if it means living on...