If you look at other lilac lynx points, some do have darker tails, though I understand where you are coming from. If she does darken up as she grows older, seal lynx point would make sense.
We've tried it multiple times, even when he was much younger and not so used to dry food. He did used to like to chew on dog bones but he doesn't anymore.
I wasn't trying to start an argument, I was just commenting advice on my personal experience with cat food. And he dislikes raw meat/bones for some reason.
In the videos, it looks like her leg is causing her pain/making her restless. She's probably breathing strange because of pain. I'm sure you've been to the vet about this but that's all I can come up with.