There are alot of variables. For instance – “plenty of table food”. Was it fatty or more fatty than what she is used to eating? Could have been a mild case of inflamed pancreas. I say mild because full blown pancreatitis will need urgent medical intervention. But left untreated, even a mild case can take weeks to recover from.
Then the new bag of food. While there are reports of dogs becoming sick on Blue there are plenty that are not and are doing just fine.
If it were me, to be safe I would change foods and also get some blood work done to be sure there is no pancreas problems going on. Give some bland, low fat food and some probiotics till you get her checked out.
