That’s such a sweet story.I've heard a story from a member on here. He lost one of his favorite hens while rushing everyone in before a storm. He couldn't find her, for 2 days while the storm rushed though and didn't count on finding her after. Turns out she his out under a overturned flower pot the entire storm. She was just fine.
I hope your Dottie turns up, chickens are to good at making us worry.