This sounds like a recipe for disaster. I would spay both of your dogs ASAP. In my experience, fights between new pack members always begun 4-6 weeks after the new dog arrived. There is kind of an initial grace period where everyone is adjusting, getting comfortable, and figuring out what the rules are in the home. Having to intact dogs is only going to intensify a problem that may already be there. I truly hope that spaying you dogs will be the solution to your problem, however if it is not I would recommend an trainer how specializes in dog aggression.
Your vet should take a look at this for it could be very serious. Three thing I would initially be concerned about is cancer, infection and testicular contortion. Contortion is where they cross over and the blood supply is cut off. All of these can produce pain and your cat needs to see a vet.
Hello,
A kitten that is under two weeks old still needs to be stimulated to produce urine and a bowel movement. Is this happening? Is the kitten with the mom cat? If you are bottle feeding are you using a warm damp cotton ball or wipe to gently wipe the area to encourage a bowel movement/urination? Sometimes when kittens have parasites they can have very soft stool that can get impacted around the area and smell….definately take the kitten to a vet. At this age they can go downhill very quickly if not kept healthy.
Good luck!
~kelly