Is there such a thing?
A few weeks ago, on the drive back from the beach, I noticed Coral's pillow was wet. The same thing happened last night. Tonight, she dribbled pee all over the comforter.

The first two times I didn't think much of it because the liquid was clear and it wasn't soaked- just damp. Also, they all lick their paws a lot so sometimes that'll make the couch, bed, etc. damp.
She pees normal regularly, drinks water, etc. so nothing else is different.
Any suggestions? Anyone experienced a similar situation? She has a vet checkup later this week so I'll ask about it then, I'm just curious...