I wouldn't cut back on feeding to be honest. Most ball pythons eat once a week without a problem and I'd say if she wants to eat, let her eat each week. Especially if that's what you've been doing up until now anyway.
Then again it's really up to you, some people DO feed every other week when their ball pythons get up to a certain weight or to cut down during breeding season.
As far as the shedding goes, they don't shed the skin right after they go blue. They always look dull for some time after and usually shed just fine in the end. I'd just wait longer to see and then if she starts to peel in odd spots or gets REALLY wrinkled looking, give her a lukewarm water soak for about 30 minutes in a tub. Not deep enough for her to drown!
Forgot to add- My spider pees on me EVERY single time I get him out. So I don't think going to the bathroom often is a concern here.