I was kind of wondering just what tests your vet did to decide that he she "seemed" fine. Thyroid can effect this type of thing occasionally.
Does she have an unusually thick coat? Does she drink enough water? I didn't check to see where you live but many of us have just gone through an very long hot summer. If my dog was panting that much for months at a time I would be concerned. Has your dog been panting a lot all summer?
Gracie loves warm temps! I think she would like to move to the tropics. She hates the AC and despises the ceiling fan when I turn it on in the bedroom. She will burrow under the blanket when the fan is on!
