Animals loaded down with worms tend to be a little more lethargic. Is it possible that, with her little butt-buddies gone, she's perhaps just feeling back to normal? If the worms were getting her down for a while, she could have seemed normal to you and this quick bounce back to her old self might be throwing you off. That would be my guess here.

I also don't think the moss will be an issue. Snakes (most herps in general I would think) do occasionally ingest bits of their environment with their meals, and as long as you're not keeping her on broken glass substrate it should pass through just fine.

She is certainly lucky to have such a caring keeper, though

v