Poor Bella has been through so much lately
I hope she's doing better today.
One of the information sheets I got with my pup stated that they are to
absolutely stay away from 'sugar free' products as they can bring on hypoglycemia. I was quite surprised by this when I read it as it's something I'd never heard of before. I don't know if this info helps, but thought I'd pass it along, anyway.
I hope she gets along well at the vet and that she's feeling better.
hugs
Val