Is she a little dachshund mix? (Hard to tell her size from the photos). I have two dachshunds 11 & 13. So all doxies pull at my heartstrings. Their lives are too short and despite your feeling for her over the years it is great you are giving this old lady some love during her visit.
Ya, she is. When we first moved to Utah, my parents bred her with another Dachshund that belonged to my friend and they had the weirdest little noodle babies.