Oh dear, oh dear! I'm so sorry!
My first suspicion would be the food - does it smell fresh and good, not moldy or musty?
I might even pick up a bag of food from a different source than where you got the last and try that. Good luck - what a terrible thing.

My first suspicion would be the food - does it smell fresh and good, not moldy or musty?
I might even pick up a bag of food from a different source than where you got the last and try that. Good luck - what a terrible thing.