dog has been pacing for hours and panting. she won't stop. she has eaten crackers or food that we put in mouth but hasn not touched her foopd bowl. water is dripping from her mouth but she has only drank a little water. she seems to be shaking. she seemed fine when i left her at home for a couple of hours but she and our other dogs got out of the yard but were brought home by my husband ANDA NEIGHBOR. She may have been injured somehow. the only other thing is she had the flea and tick medicine put on her just like her sister and another dog. She is a yellow lab 4 years old.