Putting a pet down is the hardest. You question “did I put him/her down to soon” “could it have waited one more day”. ”why didn’t i know they were sick”. I know putting the pet down was the human thing to do. But I still blame my self and probably will for a very long time. It’s hard because she acted fine Saturday morning and by Tuesday she was gone. It helps me knowing that I was with her and I’m glade she didn’t pass by herself. But that day will be remembered for my life. Being there with her was the hardest thing I can imagine. It’s been 4 weeks and I still cry everyday. Let yourself cry.