9 month old refusing to eat kibble

I also remember Bacca going off his food when he was first diagnosed with hypothyrodism - around the same age.

I'm saying your pup has this, but if they go off food for a period of time, it does speak to some other ailment.

And even once the ailment is fixed, they sometimes associate the food with what made them sick in the first place. If you pup is still not eating this many days later, then, yes, it may be time to see the vet.