My 6 month old kitten went missing 3 days ago. She came back today in the morning. She also some wounds on her limbs. She was very hungry too so she had some food, purred for a while in my lap and slept. Ever since she woke up, she wants to go out again and is meowing continuously. She is also hissing at my two other kittens when they try to play with her or even go close. One of the other kittens is her sister, they are same age and have always been together. I am unable to understand why she wants to go out if she is hurt and why is she hissing at the other kittens. Can someone please help.