My thoughts are with you and your kitty while you contemplate this difficult decision. Please know that your veterinarian is there is help you as well - we're a non-partial party who can help you evaluate quality of life and often have many strategies of our own that we have been taught or learned through life experience (since we euthanize pets as part of our daily life) that can help you arrive at a choice that is okay for all parties involved. I talk to owners daily about end of life issues because it's something we don't deal with much in people, and for some people after many years with their first pet, it's the first time they've had to deal with it themselves as well. Give your vet a call, that's what they are there for.

My only other advice to offer is - does your vet offer boarding? Perhaps you can have your sweet kitty stay with your vet while you are gone. There she will be watched carefully and cleaned up after without any problem (it's our job!). And if anything should happen - she's right there where she can get help right away.

HTH.