So sorry to hear about your sweet kitty. She is beautiful. It is never hard to put them down. I just went through this last week with the Labrador love of my life. You definitely have to weigh the options of what quality of life she will have and if she will end up suffering if she injures herself. It is hard to do but I actually feel relieved that I do not have to worry about Casey any longer. She is in Heaven and is happy and healthy again. I worried so much about her the last month that I was getting physically ill myself. Prayers are going out for you and your kitty and family.