Bernie, my mature GSD has had a change in behaviour. Bernie, has never been into food really. Fine on his own. But with me. Not interested in food. As im "ball lady". And he's addicted to balls.
Now suddenly is:
begging for food
eating all of his food: and still hungry
Stole food for the first time in years and years
What the hell is going on. He was never interested in food before, why now?