Maybe she's got a little asthma? I guess dogs can get it too. Or maybe there's some new pollens or dust in the air and she's got an allergy. I think if she's eating, playing and eliminating normally, I'd just watch her breathing and if she starts doing it again, try to calm her down so she doesn't have these episodes. Then take her into the vet on Monday or as soon as you can. My $.02 worth
