Hi, I have a question about my 2 year old lab, Merry. Merry is a black lab and she has been panting excessively the past few days. She has been drinking a lot of water, but I am starting to think it is b/c she keeps tipping her water bowl over to play with the water!!! She is panting when she is laying down or when she is active. She is a bit over weight (81 pounds) and we live in a hot climate (New Orleans). I am not sure if she is panting due to the fact she may be hotter then the rest of us in the apartment or if it is something else. She is eating normally and using the bathroom normally. Any advice or comments is appreciated. She is the first lab I have ever owned and I have had her since she was 6 weeks old. Oh her gums are normal looking and so is her tongue. thank you in advance for any help.