gave timmy the baby gerber chicken stix tonite, and im still unsure if hes allergic/intolerant to chicken

i gave him two whole ones, and he regurgitated a little bit, but managed to keep most of it in his mouth. then i gave him two more mashed up and he was fine with no problems. I didnt think he had a chicken problem, b/c he got worse on the salmon food, which didnt have chicken in it at all. I also bought some baby food corn, so im gonna maybe try that tomorrow and see if he reacts to it. If not, ill prob just keep blendin his food as i have been until the bag is gone and then buy the new stuff i wanna try for him.