Ruby's getting old.

So its been about 6-8 months since I've really noticed Ruby slowing down - she doesn't like to walk on hot days, and even on cold days she's a little wheezy. Two nights ago, she couldn't jump on to Vince's bed. Yesterday, when Maxi and Boba were barking like crazy at the doorbell, Ruby barked a few times from the comfort of her doggie bed - not wanting to get up from the poof-y comfort. Last night, she did not even seem to want to come upstairs - but did so at the very last minute before lights out. Ruby is going to be 12 in January. Still eating and wagging her tail like a champ! She is a good dog :)