If you completely cleaned her tank she's probably just getting used to what amounts to a new enclosure for her. Completely new smell and a snakes sense of smell is way more powerful than ours is. Personally Ive always used a solution of water and vinegar to clean my cages with great results and rinse and wipe dry twice with plain water afterwards. Just because we can't smell the residue of vinegar/bleach doesn't mean the snake can't.