I was wondering if i should be concerned about my Alice. She is 5 years old and a bit over weight..(8lbs) and is in very good health.. My concern is that every time, now that it is winter, when we light a fire in our homes fireplace, she starts to pant..I am not sure if it is anxiety or what. The minute we move the screens open, and the fire isn't even lit yet, she starts to pant. We tried putting her in her dog pen and even cover the side of it so she can't see us light it, but no matter how quite we are, she still starts to pant..that is the only time she pants, besides on hot summer walks or in car rides..she has never done this before..This is the first year she has done this. We have always lit a fire in the winter months and it never bothered her before. Just this year..any suggestions? Theresa