He also said he wouldn't worry about this before she hasn't eaten for a week.
Do you mean that previously she's gone a whole week without eating....or do you mean that the vet told your Mom not to worry unless a week goes by without eating?? Either way, that does not sound good to me at all. How can she poop without eating?

I don't like the sound of the inflamed gums either. My first instinct would be for her to go on antibiotics to see if that helps. Then, if the eating doesn't improve then it might just point to a really picky eater.

All paws and fingers crossed here Kirsten. I'll be praying for this precious little girl.