please please help me Rex is active and bouncing around but a few times for some reason he pants and is not so energetic. like after his nap we went for a 45 min walk then after he played for about 45 min then he got very tired. he is eating fine but just to be sure i gave him about a teaspoon of nutrical today. any advice why his energy drops so quickly? could it be the weather?? water is always available but it is very hot and humid here in south florida now. i am extra conserned because i am leaving him at home with my housekeeper (who he loves) for 3 weeks but i am still worried...ALL ADVICE IS THANKED |