Since she just went to the vet and got a clean bill of health. I would have to say that what you are seeing is the doggy blues. If she had any vaccinations, they sometimes make a dog a little tired for a couple of days. Also the examination, being probed and touched by the vet can make them a little sore, depending on how in depth the examination was. And mentally the whole visit is sometimes a little tiring and depressing to them. Some dogs even think they were punished.
You are doing the best thing. Just love her up. If she like going for a walk with you, take her for a little walk. Buy some ground turkey or ground beef (extra lean) and cook it in some water making a juicy hamburg. When cool add a few tablespoons to her regular food.
If you don't see any changes as the day progresses. Let me know.
Peace,
Christina
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Peace and happiness to you and your pet! ~ Christina
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