My son will be five months on the 8th. I asked his pediatrician if starting him on cereal would be okay at this point. He sits up great in his high chair. She recommended rice over oatmeal, at only one teaspoon per day to start. I did that for three days in a row and baby seemed to enjoy it, though he was a little confused about the spoon. (The faces he made when it got to his mouth were adorable!) He has been EBF so far, and the three days I did feed him cereal he was extremely fussy afterwords. He would fight me at his bedtime nursing, and he would growl and tense up like he had gas. Is this normal? I'm worried he's either not ready or that I'm feeding him too much. This is my first baby and I don't know much about introducing food. Any recommendations?