Ok don’t take what I’m going to say as overly critical but your setup is not appropriate. You have dry coco fiber as substrate (which should be moist),a soaking dish with gravel (an impaction risk) and what is the powder in the small dish? Some color variation is normal but it’s possible your animal is stressed as a result of its present housing. What are your temperatures? Are you using lighting? How big is the enclosure? What and how often are you feeding? Where was the animal acquired and how long has it been in your care?