We just brought home our lovely retired greyhound yesterday. He has been very anxious, panting heavily and quickly, frantically jumping at the window above the sofa as he is always seeing movment and lunges when a cat is outside. Im worried he will hurt himself doing this as he sometimes will climb on the back of the sofa and onto the window ledge with front two paws. As its only day 2, he does not cope at all with us leaving him. We left the room for 2 minutes and he was panting and jumping at the door waiting for us to come back. I know it's early days but any advice please? He isnt food motivated...doesn't seem interested in treats and only eats his dinner, wont have breakfast. Last night we slept on the sofas but we need to be able to leave the house and for him to settle down.