well if she is overweight then that could be that. have u tried lookin in youtube for videos of how other overweight dogs sound like? youtube is so nice and helpful at timesIts a really heavy breathing sound. It sounds like her nose is plugged but I can't see anything in her nose. Sounds like she can't breath through her nose, just her mouth.
hummm~ dexter makes snoring sounds sumtimes when hes awake too...not sure what it is but sounds totally normal to me. as for the having a hard time breathing...what kind of sound is it? dogs like chihuahuas tend to have a hard time breathing and snore more because the shape of their muzzle