Hello! I started introducing solids yesterday. I gave him mashed zucch…

Hello! I started introducing solids yesterday. I gave him mashed zucchini puree. Yesterday, I gave half a teaspoon and by evening, his tummy growled and cried. I think he was in pain. Today, I gave him one teaspoon and his tummy still growled, but not as much crying. I barely put him down for a nap, he slept on me with his tummy against my belly. He only slept when there were colic. Is this a normal reaction to solids? He has no rashes. Should I stop or continue feeding him?