Barking and barking and... there's nothing there...

by Kuri Mansa
(Indian Trail, NC)

have a four y.o. Schnooks who always barks when someone is at the door. No matter who it is. Resident or non-resident. We're used to that. Now, though, he barks at random sounds or... no sounds at all. He growls and gruffs and sometimes high-pitch barks and I open the door to... nothing. I think my sweet Oliver may be suffering from dementia. Any suggestions? Any similar experience? I thought about trying something that was calming like melatonin or do research on other calming herbs if they are good for doggies. I would appreciate any help you can give.