Amber is now nearly 8 mths old but she is terrible to leave (albeit with my older dog) if I nip out just to the garage, or even to the loo.. she greets me like I have been away for months, and really yodels and barks. She has been like this since we got her at 9 weeks, she gets positively hysterical if she thinks she is alone and seems to almost panic, and gets really hyper, doesn't seem any different if I leave her for a short or long time I still get a massive welcome , just wondering the best way of combatting this...