Isis is darling! By all means do a 'well baby' visit with your vet, and order the DNA swab for fanconi, huge peace of mind. I had a wonderful Isis many years ago, I love the name!
Rocky yodels… like these dogs do:
http://www.youtube.com/watch?v=6iTlEwTOzm0
Especially when we come home. Complete with the "lightswitch" tail flick and happy feet dance!