Well, they're thinking it's just a muscle injury/strain on the left side of her neck. She's on muscle relaxers and pain medication and crate rest for the time being- no running, jumping, parks, agility, etc. I have to raise all of her food bowls up so she doesn't bend down. She started acting much much better at the vets after she was moving around some. Vet said she's moving good, just reluctantly. There's nothing neurological going on. She did end up sleeping last night too and is resting right now.
If there's no improvement by monday we're going to be doing x-rays.
Poor thing, but I swear papillons act like they're dying every time something doesn't feel good. It makes it very hard to judge the severity of what is going on!