Quote Originally Posted by coldbloodaddict View Post
Female cats usually don't spray.

Sounds like a Urinary Tract Infection.
Actually, female cats can and will spray just as much as males, especially if there is another female around that they feel the need to mark their territory. It's possible another cat is in the neighborhood and spraying outside, which could trigger your cat.

I suggest a trip to the vet though because a UTI is a possibility. Getting her spayed now may not be the best since she is older. A lot would depend on her health which the vet can assess. I can't see how you lived for 12 years with her going through heat cycles..that would drive me batty!

Along with this, make sure you clean any area she sprays on with an enzyme cleaner such as Nature's Miracle. Even if it looks clean to you, without using something to neutralize the proteins the cats can and will continue to mark the area.