Down in the dumps dog?

[Gawdimold]

I’ve got an 11 year old shihtzu. Since yesterday she just seems “quiet”. Eating/drinking normally but just looks down in the dumps 😞 if that’s possible in a dog
She does appear to be sleeping more but doesn’t appear to be in pain- not crying or growling .
worth a visit to the vets?

Absolutely. There could be so many answers, none of which you can know without at least the basic tests a vet can carry out. Sooner rather than later.

I have taken many dogs to the vets because they seem "depressed". Always a medical reason from UTI to pain.

Definitely a vet visit. Hopefully she's okay and back to her normal self soon!