I'm sorry I didn't reply sooner. Deepest condolences for your loss, I'm so very sorry. I know the pain feels overwhelming and you can't imagine how you'll get past it, sadly there's no band-aid for grief, there's five stages and you have to get through all of them, then you start to heal. It sounds like you are really struggling with the ending, sometimes we are faced with awful decisions and even though we make the only decision we can in our loved one's best interest the final outcome is unthinkable, that doesn't mean you made the wrong decision. It helps to remember, our feathered friends live in the moment, their love for us is pure, they don't contemplate what might have been the way we do. You gave Cheddar so many happy moments and I admire your courage for wanting to be there for Cheddar no matter what it would have done to your heart, a lot of people can't find that kind of courage when those last moments arrive. Cheddar was never alone, you where with her every step of the journey.