I recommend just taking her to the vet to be safe. In the time being, consider if you’ve made any environmental changes that may have set off allergies, like a different brand of food, bedding, litter, opening a window you usually don’t….
Sneezing is most commonly caused by a URI, or upper respiratory infection. Common symptoms to include a runny nose, but symptoms may not be apparent right away. Wick had a URI and did not have nasal discharge until a while when he started sneezing.
If it is a URI, the sooner you begin treatment, the better. A typical course is 10-days, but if you find symptoms are still there, you can extend the course or change medications as well. Continue to be observant and discuss everything you notice with your vet.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.