bad dream

I had a horrible dream last night. It was so weird, and so sad. I dreamt that for some reason I had to euthanize my two cats.
Now, you have to understand just how important these cats are to me. They are my family, my friends, my babies.
In this dream I knew this had to be done, but I didn't want to do it, but I couldn't help it either. I was the one to euthanize them. I watched them die. It was awful.
I woke up not just sad, but absolutely sobbing. I was horrified with what we had done, riddled with guilt, and totally devastated by the outcome.
Why would I dream something so awful? What could my subconscious possibly be trying to tell me? I need to be better to my kitties? I don't think so. There are very few cats who are as spoiled and well taken care of as them!
My husband thinks I am too attached to them. Well, I don't have other little things (like kids) to love, so why not?
In the end, it was a stupid dream that most likely means absolutely nothing. It is too bad that it had to affect me so much.