Hello, I recently gotten a new dog (Bagel, 1 year old welsh corgi mixed) and she has been sneezing quite often. We've had her for about 1 week, and she seemed fine until about 2 days ago. She'll sneeze often, and when she sleeps she snores. I noticed also that whatever she is sleeping on gets wet from her drooling and sneezing. And at times, she makes this weird hacking noise (I really don't know how to describe it, but I guess you can say it sounds like when a person tries to 'hack' mucus out of their throat and makes that noise) and she does it for 10 seconds or so. Is it just a cold or something more serious?