[AprilLove]

I am so sorry for you and your precious Gretta. You love her very much, and if you feel she does not have quality of life, you will know in your heart if/when to set her free. We want so badly to hang on for ourselves, that sometimes we prolong and then question it afterwards. I do not know much about CT, so I cannot speak of that. Your vet is your best advisor.
I have just recently sent my 2nd furbaby to Rainbow Bridge (she was almost 15) and I can tell you that euthanasia is painless and peaceful/ not traumatic for them. I held her in my arms like a baby and looked into her eyes while telling her gently of my love for her, she knew we were saying goodbye and yet still had such love and trust in her beautiful eyes, and it hurt me soooo much... BUT, there was such an overwhelming feeling of peace in knowing that she had entrusted me with her life and love for all these years and that I could do this for her, set her free from the ravages that were taking over her frail little body. Of course I am crying while I type this because I miss her so much still, but I have no regrets as she was ready to go play with her big brother that went before her.
This is not an easy decision, and one you and your vet should make together after exploring what options she has for a quality of life.

Peace be with you, and prayers and hugs for your little Gretta and you. {{{{{{{{{HUGS}}}}}}}}