Hi. Wondering if anyone else's Yorkie does this. Gracie has always put her forehead down and rubbed her nose on the floor when she first sniffs her food bowl (especially when she has fresh kibble). Does this mean something?

She usually just sniffs and goes back later to eat.
She also started rubbing her jaw on the floor whe she started teething. I assume this is due to her jaw hurting.
Thanks!