Wow! You are so lucky that you got your dog back. Those weeks without her must have been so hard.
Losing one of my dogs is my biggest fear and just thinking about it makes me want to cry. One of my dogs is so untrusting of other people that I fear he would run from anyone trying to help him if they found him. My other two dogs are so sweet and loving and trusting of everyone that I fear someone might decide they would rather keep them than get them back to me. It's probably irrational, but it's my biggest fear in life... When I leave my house, I double check the door 5-6 times to ensure I closed it all the way and locked it properly. I make sure all of my apartment neighbors know how to contact me and what to do if something happens. Of course, they're also all chipped and tagged.