Hello, 1 of our dogs has started crying at night. They have always slept down in the kitchen. Usually they spend time with us upstairs before bed time. She has started crying the last 2 nights once taken down stairs and put to bed. We did the first night go down to her once because obviously worried to hear her making that noise, and she was excited as if we have been gone a week. She settled down and as soon as we left started again. She dosnt appear in pain, goes up the garden to the bathroom ok, it just comes across as separation anxiety. Really don't know what to do its the 2nd night of it and its currently 4am still going. The dog is 3.5 yrs and cannot think of anything that may have changed to start this behaviour.