cat jerking head & sneezing

My cat found a space under the kitchen cabinets yesterday and after being under there for about 30 minutes has since been sneezing like crazy, but with no wet nose, and jerking her head backwards frequently while awake not asleep.  Could she have been bitten by some spider/bug or been poisoned by something underneath the cabinets like roach or rodent deturents?  Please, help.  She is 3 years old, fixed, with all her vaccinations and was given a thorough blood test prior to entering Europe from Colombia and everything showed that she is 100% healthy.  What could this be?

Most likely, she just got into some dust.  Give it some time to clear up.  If it persists for more than a couple of days, then start worrying.

You are a dear, StephanieTX, to response to quickly. It cleared up after a few days, but those days were not pleasant as I was a worried mama.  I appreciate you taking the time to respond to my inquiry.  All the best to you and yours.