Your cat could have a urinary blockage or cyst. It is very painful for them, so you should bring your cat to the vet ASAP. My cat had "crystals" in his urine, and he had to be catheterized so they could unblock his obstruction. Often times, if it usually requires the use of antibiotics. Male cats are more prone to urinary problems than females. Giving a teaspoon or 2 of wet cat food everyday can help maintain a healthy urinary tract. Also, good quality cat food and fresh water.
There is no such thing as a cat over licking. If a cat licks itself a lot the cat can be in a lot of distress, have a skin parasite, or is just getting dirty a lot. I would check in with a vet though to be sure it is not a parasite or anxiety.
When it Is acting funny around male cats. It will be licking its place a lot
dogs can eat cats if not eat them hurt them like chewing on them. but you can train it to act friendly and be nice to the cat.
Take him to the vet.
If the cat is going to the litter box to urinate often, but not producing much urine, it likely has a urinary tract infection. Consult your vet to be sure.
The diarrhea could be the reason the cat has problems using the litter box. Cats associate the pain of ailments such as a urinary tract infection with the use of the litter box. If they have problems with their digestive tract, they will think the pain comes from using the litter box, and do their business in another part of the house. You should take the cat to the vet to find out what the true culprit is. It might be in a lot of pain.
Cats spend a lot of time licking themselves this is very normal however if your cat has gotten into something that is hard for him to get off his fur such as oil then you may want to help him out by giving him a bath. Also look at your cat closely to make sure he does not have fleas or ticks or a wound on him that may be causing him discomfort.
The most simple answer is: The cat will most likely become poisoned from licking the bleach off its fur. If a lot of bleach is spilled on the cat, it will cause painful chemical burns on the skin, and will cause untold damage if any got in the cat's eyes, ears or nose. If bleach has been spilled on a cat, you must take it to a vet immediately.
The behavior you describe does not make me think that you dog wants to eat your kitten. Typically if a dog is going to kill a cat and they get that close it would be a done deal. They don't usually mess around with licking.
She might-need more training, have trouble aiming, be distressed, be scared of the surroundings of her litter box (like if it's next to something noisy or something like that)....There are a lot of possibilities, a lot of times people just have to look at it from the cat's point of view.
Very likely, your cat's kidneys are failing due to her age.
Hopefully they are still all alive. Just wait and follow the Momma cat without her seeing you. She will be going back and forth a lot to where she has them.