I typed a whole answer and the internet timed out:(
She scoots outside usually when we are walking her. Mostly we can smell her, but the groomer has said they were bad before. One time I didn't have them do it, and a few days after grooming we started seeing and smelling signs of it. We took her in and the groomer expressed her in a towell and held it up. 2 - 50 cent sized brown spots. It had only been 4 weeks since the last time. Last night she was sitting on my lap and left a stinky dime sized spot on me. She was expressed 7/27 last. I have also noticed her sit down and scoot a little in the last week, but it was when I was walking her for a poop, so thought it could just be that.
I feed her Beneful dry. I keep the dry down all the time and feed it soaked in warm water every other day. She still seems to only eat every other day anyway. She is 1 1/2 yeas old.