Why is my spayed 15-year-old cat acting like she’s in heat?

Dear Most Esteemed and Knowledgeable Kitties:
I have a cat that is 15 years old. I had her spayed 12 years ago. Right now, she has been in heat constantly for the past 2 months. She also has been urinating all over the house, mostly on my husband’s things. She has also been drinking a lot [...]

My kitten is suddenly acting sleepy and sad. What’s going on?

Dear Most Esteemed and Knowledgeable Kitties:
Hi I have four 6 mo. old kittens I adopted. Their mom was a feral cat who adopted my son. One of the kittens seems to be sad, sleeping all the time (as of today, and not cat napping). He is not himself: He’s not playing or eating (but he’s [...]