I think she is just getting eccentric in her old age, but, Tommie is 13.5 yo. Over the last few weeks, she would be in the house(on her couch!) and all of a sudden dive off and go to the door. This happened several times in a night. Thats progressed to her not wanting to be inside with us( me and the other dogs) much, or even at all. She may come in for a few minutes and then head for the door. Lately wont even sleep inside- I have a crate in the puppy barn with blankets in it-so she at least has a 'spot" to go to.
Also, more weak in the rear,but not bad- still wants to go for (and does) our nightly walk/run/swim.
Coat getting dull.
But, she has not lost drive to EAT at all... same old Tommie there- but just acting wierd.... Not sure what a vet visit will tell me-other than she is aging.
Anyone experience anything like this ..... I dont want to accept that she is aging, but its a no brainer....