I am so sorry to hear about Zoe. I hope she feels better and heals quickly. Buster hurt his leg as well. He was playing with his girlfriend and he jumped off of a wooden deck and jammed his right front leg. He didn't yelp but I noticed him limping and cut their play time short. He still was limping the next day so I brought him to my vet and she said he had a bad sprain. She has him taking Arnica for the discomfort. I was wondering what anti inflamitory Zoe is taking. He has not gone out for walks or to play for a week now. Needless to say he is quite upset by that and has let me know on numerous occasions. We had a friend visit yesterday and he was so excited he jumped up and down and then he yelped and held his arm out to the side so I think he will have to be quiet for at least another week