Why does my yorkie x Jack variety sneezing noise when she plays or get excited?

When my yorkie x jack russlle plays or is excited she starts making sneezing noises. Why?
There ia a lot of proof that dogs sneeze for 2 reason. 1. When they are happy or excited. 2. When they have inhaled something undesirable.
small breeds like these are habitually prone to respiratory problems. usually it is simply because the trachea constricts when she gets excited, it probably isn't a huge problem but if you suggest that she sounds like she is having difficulty breathing, see your vet.
Answers:    my doberman does the same
Because they often stir up dust one so close to the ground when they jump around, my dog does it too.
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