I took in a stray non-feral cat that had been abandonded by her owner last winter. She\'s a sweet, long-haired little thing who\'s a bit shy. She loves to go outdoors and has done so with no harm for the past year and a half. She is spayed and has all her claws However, in the past few weeks, she\'s come home with injuries. She was clawed all the way down a side, and got an infection that merited a vet visit. Today she just came with a deep slash across her nose and brow that thankfully missed her eye. She was panting shortly after, something she\'s never done before. She\'s quieted down and napping currently, but seems extremely cautious and was meowing oddly earlier. She\'s generally a quiet cat. I\'m worried that some new cat or animal has set up residence nearby, and that I may have to keep her inside. What\'s up with the panting? How can I keep her inside for her own safety without stressing her out?