Help I think my axolotl is morphing

Her birthday is November 29th, 2023. We’ve had her since February, bought from Gilly Aquatics. She’s been kept in the same conditions as the other two, and they seem very healthy. Pink began losing her gills a few weeks ago, and we’ve been freaking out. We thought we almost killed her somehow but water parameters have been fine.

She seems to be growing eyelids. She lays with her legs spread, and they’ve gotten longer. Gills just keep getting smaller. She keeps her head out of the water. She eats a worm about every other day. Her slime coat has been coming off.

We just moved her to a bin with shallow water. I don’t know what to do next.