HI MY AMERICAN BULLDOG IS 58 DAYS PREGNANT. SHE HAS TOTALLY GONE OFF HER FOOD, SHE HAS BEEN PANTING HEAVILY THE PAST FEW DAYS BUT MAYBE OUR ROOM IS TOO WARM. SHE ALSO WONT LAY DOWN AT NIGHT. SHE SITS UP AT ALL TIME AND YOU CAN SEE HOW TIRED SHE IS BUT SHE WONT LAY DOWN. IS THIS NATURAL?