Not sure of her exact age, as she is a rescue cat.
Last sunday she was sick and we then realised she certainly was not herself.
She was not interested in her food and just generally looked like she had been drugged

She is even struggling to meow properly and her fur on her back is spiked up.
I called the vet on sunday and took her along.
The vet said she might have pancreitus and told us to monitor her.
Monday she was no better so I took her again to the vets.
Different vet this time, he said she has just got a nasty bug, and administered a two week injection of anti-biotics.
Took her temp and checked her for dehydration, both were ok.
On fri I took her back again because she was still no better and also she has been sick a few more times, only to be told by another vet that she seems fine and just keep an eye on her.
I know our cat real well, and I am worried there is something going undetected.
I would hate to think I am sat here while she is in pain with something.
Any ideas anyone what we should do please?