Hello! My Staffordshire Bull Terrier (Max) had been acting very weird recently and I came to the realisation that this behaviour is only apparent when he's on his own. Max is 11 years old and never showed this behaviour until recently, he was taken to the vets earlier today to find out he has anxiety, dementia and arthritis. Regarding his anxiety there's multiple things he does once someone has left the room: Headbuts + scratches + stares at the door Moves his bed around Whines Paces around the room I've watched multiple videos and read articles on what to do to help soothe your dog's anxiety and I've attempted many of the methods mentioned yet none of them are seeming to work. I've tried training him to stay in one place as I walk towards the door but he follows as soon as I've got my hand on the handle to leave. I've also tried leaving him a 'game' where he could try and find his treats as soon as I leave; as soon as he'd found the treats after a couple minutes he went back to the door to scratch at it. I'm lost on what to do because I don't have enough time to stay with him constantly and I'm afraid that'd only worsen it too, I also have no clue on what to try next. Help would be very much appreciated. Thank you. (Quick side note, I'm not willing to try anything that'd harm him such as shock collars).