I'd broadly agree with this except for the part about the black spot. As there's no bald patch, we can't say one way or the other if the abdomen has begun to darken or not.Just by this picture alone she seems ok. I mean there is no bald spot which tells me she isn't stressed kicking her hairs off. The abdomen seems of right size and not shriveled. I also think she is not ready for a molt as her abdomen has no major black spot that would indicate an upcoming molt. Roseas are notorious for hunger strikes, and like said above do everything slow. Just keep fresh water and offer her a cricket periodically. If she refuses it, or kills it try again in a little while. It's important to keep fresh water available.
One thing, does she have a burrow? At first when my rosea was my first T and I was still learning I didn't have a burrow for mine, or I kept disrupting it so I could see him. He got really stressed and stopped eating. I'm not saying you are doing this but I bring it up just in case it is valid to you.
Good luck.