I am so sorry you're dealing with this.
I'm going to try and be a light in these dark days. My brother's yorkie, a 3lb little girl, went missing after jumping out of their car window while they were out of town in February (he's been scolded since this happened). She'd never been to this town, which is a very small town with tons of farmland. During this time, it snowed, it hit -20*C(-5*F) many nights in a row, and I truly didn't think she'd be alive. Well, she turned up 6 days later. She was very hungry, but relatively unscathed and happy.
Hopefully you have a similar happy ending. My thoughts are with you!