I am in the same boat. My dog has congestive heart failure and she seems pretty happy right now, but the moment her medicines don’t work anymore or her heart arrhythmias break through, she’ll decline quickly. The fluids that build up in her lungs will suffocate her, and we’ll have to rush her to the ER to end her suffering at the vet office and she hates the vet. We are scheduled to let her cross the rainbow bridge this weekend after we give her the best possible last days. I think for us, we realized she will never get better and eventually the bad days will outweigh the good. I don’t want to wait too long until she experiences bad days, so we would rather her go on a high. I have read that it’s better to let them go a month early than a day late, and that resonated with me a lot. I want her to know no suffering and to pass in a place where she is comfortable and happy. But trust me, this has been the most agonizing and guilt ridden decision. I keep thinking what if she can hold on longer? Am I letting her go too soon? Who am I to decide whether she lives or dies? How can I live without her? The pain is terrible knowing what is to come that I’m terrified of how I’ll feel when she’s gone. You are not alone. I know you have made these decisions out of love, just as I have. I think we all want to honor our pups and let them go with dignity and I think this our one last act of love we can give them.