Wow, you have had a lot happen to you lately! No wonder your cat is stressed. I am sure when your kitten is fixed, he will calm down some. My kitten did (just a little though). He is still a KITTEN though, so it might be awhile for that to happen. Kittens are just kittens...........All the turmoil might be having an affect on the kitten too. Cats are like people and they all react differently. In the meantime you should probably take your older cat to the vet just to see if she is healthy and maybe see if there is any meds that can help for awhile. Good luck, and let us know how things go.