* "Mother cat" is the standard term for a female cat that has given birth and is raising kittens.
* "Queen" is sometimes used as a more formal or affectionate term for a mother cat, especially in breeding situations.
The term "worrier cats" isn't a recognized term in feline terminology, so it's likely referring to cats that are prone to anxiety or stress.
If you're looking for a term to describe a mother cat that is experiencing anxiety, you could say something like:
* "Anxious mother cat"
* "Stressed mother cat"
* "Worried mother cat"
Ultimately, the best term to use will depend on the specific situation and context.