I can't believe I forgot to update here!
On Friday, Layla started showing signs of "spinal walking" on the underwater treadmill! It's not real conscious walking, but moving her legs due to muscle memory. Basically it's the spinal cord in her lower back telling her legs to walk, but not the brain. There's still no sign of the spinal cord healing, but I need to be confident it will come!
At Reiki yesterday, the woman told me to visualize Layla running and walking and playing with her favorite toys in her favorite places and to send those images from my "third eye" to Layla's. She will get the images and remember what it's like to have 4 legs and will her own body to heal. She said I need to be positive ALL THE TIME, even when Layla's not around. If I talk to someone who doesn't know about Layla's problem, I can say this happened and there was damage but it's HEALING and she is getting better! I am not supposed to say there's a 50% chance or that she might not walk again. She will walk again, because she IS healing. The universe will give us what we believe

I'm hoping so, anyway!