New file, dogs/cats, how to frustrate your human

[awty]

The cat decides after I have stocked up on a canned food that he seems to like that it suddenly causes barfing.  Changing to a different formula works well right up until I have a decent supply of it and it suddenly becomes barf-inducing.

You should take you cat to the vet's for an exam as soon as possible. Two of my kitties exhibited this behavior and in both cases they had cancer. I had to have both of them put down.

This has been his MO for years.  Dry food never makes him barf and the only reason I give him wet food is to help with his dry skin...trying to get some oils into his system.  Thank you though for the concern.