The past couple of days Billy has been acting odd, he was very good friends with my bunny that I had PTS yesterday and whenever I am out in the garden Billy usually joins me and sits on the bunny hutch. Saturday he came out with me and refused to come in off the rabbit hutch,it was like he knew something wasn't right with Jase. I eventually got him to come in and he just went upstairs to bed. Then yesterday when I got back from taking Jase to the vets I picked Billy up and he hissed at me,he frightened me,he isn't like that at all normally. I left him alone,he is eating and drinking and looks fine. I tried him again today and the same he hissed and growled at me. He runs away from me when I go near him and he was fine the other night,I posted pics of him on here being all relaxed,he is just acting so strange. I really don't know what is wrong with him. Maybe just coincidence that I had to have his friend put to sleep. I love all my kittys but Billy is my only boy and I have a special place for him in my heart. Any ideas would be gratefully received.xx