Not going to be a very good day here...

Awwwwww I am so sorry. Yes it is so hard. You feel like you are making the right choice, but then wonder why if it is right ...it feels so bad. I just had to decide if it were me, I'd want the mercy if it were available to me. She has been sick for months and months, and we knew the time would come. Just didn't want it to. Kept hoping for a miracle.
I hope you are healing from your loss well.

It sounds like you definately did the right thing.. But i sure understand how hard it is to finally break down and just do it.