Axolotl sick after laying eggs

[ValerieH]

Several months ago, I got a GFP female who was already a few years old and to my knowledge, had not been bred. She was healthy and ate earthworms enthusiastically. I paired her with one of my males, and she laid mostly infertile eggs. I have 2 hatchlings from this. She hasn't been the same since. She ate a couple of worms since laying, but is now refusing food and appears listless and her tail is looking withered. What should I do? Should I fridge her?