I seriously doubt that it's cushing's, but excessive urination is a symptom of it.
I'm gonna beat you with a wet noodle for getting me onto that dang breastfeeding thread. sheesh, there are alot of dumbasses out there.
When I googled for excessive urination, all I found was Cushings... and she's way to young for that.
As for the breastfeeding thread.... my pleasure ;~D