That sounds like what happened to our malamute. I heard her crying one day and went out to check on her and she was under the deck unable to move. We brought her inside and she couldn't even lift her head. We tried feeding her but she wouldn't eat--she drank a little water but that's all. We tried all day nand night to get her to eat, but she wouldn't. She 13 and that's old for a malamute but that still didn't make it ny easier when we had to get her pts. It was maybe ever harder since we had her for so long. We just couldn't let her keep suffering. She was such a good dog and we just couldn't stand seeing her that way.
I am so sorry about your Paxel. What kind is she? I will be saying some prayers for her